Ingredient Animal — whole (全虫 quán chóng)

Jiang Can

Silkworm (stiffened with Beauveria) · 僵蚕

Bombyx mori Linnaeus (infected by Beauveria bassiana (Bals.) Vuillant) · Bombyx Batryticatus

Also known as: Bái Jiāng Cán (白僵蚕), Jiāng Chóng (僵虫), Tiān Chóng (天虫),

Jiang Can (Silkworm (stiffened with Beauveria)) plant

Images shown are for educational purposes only

Jiang Can is the dried body of a silkworm larva that has been naturally infected by a white fungus (Beauveria bassiana). It is widely used in Chinese medicine to calm spasms and tremors, relieve headaches and skin itching caused by Wind, and dissolve Phlegm-related lumps and swellings such as swollen lymph nodes or mumps. It has a mild, neutral nature, making it suitable for a broad range of conditions.

Category Wind-extinguishing and spasm-relieving herbs (息风止痉药)
Therapeutic focus Neurological Health Headache Relief Itch Relief Throat Health

TCM Properties

Temperature

Neutral

Taste

Acrid / Pungent (辛 xīn), Salty (咸 xián)

Channels entered

Liver, Lungs, Stomach

Parts used

Animal — whole (全虫 quán chóng)

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What This Ingredient Does

Every ingredient has a specific set of actions — here's what Jiang Can does in the body, explained in both everyday and TCM terms

Therapeutic focus

In practical terms, Jiang Can is primarily used to support these areas of health:

Neurological Health Headache Relief Itch Relief Throat Health

TCM Actions

In TCM terminology, these are the specific therapeutic actions that Jiang Can performs to restore balance in the body:

Extinguishes Wind and Stops Spasms Dispels Wind and Stops Pain Transforms Phlegm and Dissipates Nodules Clears Heat from the Throat

How these actions work

'Extinguishes Wind and stops spasms' means Jiang Can calms internal Liver Wind that causes involuntary muscle movements such as tremors, twitching, and convulsions. Because its nature is neutral (neither hot nor cold), it can be used for spasms regardless of whether the underlying cause is Heat or Cold. It is particularly suited to cases where Phlegm and Wind combine to cause seizures or convulsions, such as childhood febrile convulsions, epilepsy, or tetanus.

'Dispels Wind and relieves pain' refers to its ability to expel Wind from the channels and collaterals of the head and face. This makes it effective for wind-related headaches (including migraine), facial pain, toothache caused by Wind invasion, and itchy skin rashes like hives. Wind in TCM is an agitating pathogenic factor associated with sudden onset, movement, and change.

'Transforms Phlegm and dissipates nodules' describes how Jiang Can breaks up Phlegm accumulations that form lumps or swellings in the body. This applies to conditions like scrofula (swollen lymph nodes), mumps (parotid gland swelling), thyroid nodules, and phlegm-related throat obstruction. Its salty taste in TCM theory softens hardness and dissolves masses.

'Clears Heat and resolves toxins from the throat' means Jiang Can can address sore throat, throat swelling, and voice loss caused by Wind-Heat or toxic Heat affecting the throat. It is a commonly used herb in formulas for acute pharyngitis and tonsillitis.

Patterns Addressed

In TCM, symptoms cluster into recognizable patterns of disharmony. Jiang Can is used to help correct these specific patterns.

Why Jiang Can addresses this pattern

When extreme Heat stirs up internal Liver Wind, the result is high fever with convulsions, muscle spasms, or seizures. Jiang Can enters the Liver channel and directly extinguishes Wind to stop spasms. Its neutral temperature means it does not add more Heat, and its Phlegm-transforming action addresses the Phlegm that commonly accompanies Wind in this pattern. It is often combined with stronger Wind-extinguishing herbs like Gou Teng (Uncaria) or Tian Ma (Gastrodia) for severe cases.

A practitioner would look for one or more of these signs

Convulsions

Febrile convulsions, especially in children

Muscle Spasm

Involuntary muscle twitching or rigidity

Epilepsy

Seizures with phlegm-related symptoms such as drooling or gurgling

Commonly Used For

These are conditions where Jiang Can is frequently used — but only when they arise from the specific patterns it addresses, not in all cases

Arises from: Phlegm

TCM Interpretation

TCM views facial paralysis (Bell's palsy) as Wind and Phlegm lodging in the channels that traverse the face, particularly the Stomach and Liver channels. When Wind (which causes sudden onset and movement) combines with Phlegm (which causes obstruction and stickiness), the channels on one side of the face become blocked. The muscles on the affected side lose nourishment and go slack, while the unaffected side pulls the face to one side. This is described classically as 'the pathogenic side is lax, the healthy side is tense, and the tense side pulls.'

Why Jiang Can Helps

Jiang Can directly addresses both pathogenic factors in facial paralysis. Its acrid taste disperses Wind from the channels, while its salty taste dissolves the Phlegm that blocks them. It enters the Liver channel (which governs the sinews and muscles) and the Stomach channel (which runs through the face), giving it a natural affinity for this condition. In the classical formula Qian Zheng San, Jiang Can works alongside Quan Xie (Scorpion) and Bai Fu Zi (Typhonium) to form a focused, three-herb combination that targets Wind-Phlegm in the facial channels.

Also commonly used for

Convulsions

Febrile convulsions in children

Sore Throat

Acute pharyngitis and tonsillitis

Urticaria

Wind rash and hives with itching

Lumps

Parotid gland inflammation

Reactive Lymphadenopathy

Swollen lymph nodes, scrofula

Trigeminal Neuralgia

Facial pain along nerve pathways

Eczema

Wind-related itchy skin conditions

Ingredient Properties

Every ingredient has an inherent temperature, taste, and affinity for specific channels — these properties determine how it interacts with the body

Temperature

Neutral

Taste

Acrid / Pungent (辛 xīn), Salty (咸 xián)

Channels Entered

Liver Lungs Stomach

Parts Used

Animal — whole (全虫 quán chóng)

Dosage & Preparation

These are general dosage guidelines for Jiang Can — always follow your practitioner's recommendation, as dosages vary based on the formula and your individual condition

Standard dosage

5-10g

Maximum dosage

Up to 15-20g in acute conditions under practitioner supervision. Doses exceeding 20g may cause abdominal distension and should be avoided. Patients with liver disease should use lower doses due to ammonia-generating potential of ammonium oxalate.

Dosage notes

The standard decoction dose is 5-10g. When used as ground powder taken directly (rather than decocted), the dose is reduced to 1-1.5g per serving. For dispersing Wind-Heat, the raw (unprocessed) form is preferred as it has stronger dispersing properties. For most other applications, including transforming Phlegm and dissipating nodules, the bran-fried form (麸炒僵蚕, fu chao jiang can) is recommended, which also reduces the fishy smell and moderates the herb's action. Higher doses within the range are used for acute conditions like severe sore throat or convulsions, while lower doses are appropriate for chronic Phlegm nodules.

Preparation

When used as powder (ground and taken directly with water or mixed into warm liquid), Jiang Can does not require decoction and can be more effective for acute conditions like sore throat. In decoction, no special handling is required. For dispersing external Wind-Heat, the raw form is used. For other purposes, bran-fried Jiang Can (麸炒僵蚕) is standard and is preferred for reducing the strong fishy odor.

Processing Methods

In TCM, the same ingredient can be prepared in different ways to change its effects — here's how processing alters what Jiang Can does

Processing method

Stir-fried with wheat bran (麸炒). Wheat bran is scattered into a hot wok until smoke rises, then the silkworm bodies are added and stir-fried until they turn yellow. The bran is sifted out and the herb is cooled. Ratio: approximately 10 parts bran to 100 parts herb.

How it changes properties

Bran-frying reduces the herb's ability to dredge Wind through the channels and lessens its strong ascending dispersing nature, while strengthening its Phlegm-transforming and nodule-dissipating actions. The processing also reduces the fishy odor and makes the herb gentler on the Stomach.

When to use this form

Preferred when the primary goal is to transform Phlegm and dissipate nodules (such as scrofula, phlegm masses, or mumps), rather than to dispel external Wind. Also chosen when the patient has a weak Stomach and the raw form's fishy quality may cause nausea.

Common Ingredient Pairs

These ingredients are traditionally combined with Jiang Can for enhanced therapeutic effect

Chan Tui
Chan Tui 2:1 (Jiang Can 6-10g : Chan Tui 3-6g)

Jiang Can and Chan Tui (Cicada Moulting) both dispel Wind and relieve spasms, but through complementary mechanisms. Jiang Can is heavier and better at transforming Phlegm and dissipating nodules, while Chan Tui is lighter and excels at venting Heat, stopping itching, and clearing the voice. Together, they powerfully address Wind-Heat affecting the Lung and Liver channels, treating headache, sore throat, convulsions, and itchy skin rashes.

When to use: Wind-Heat patterns causing sore throat, hoarse voice, skin rashes with itching, or childhood febrile convulsions. Also the core pairing in Sheng Jiang San (Ascending and Descending Powder) for regulating Qi movement in febrile disease.

Quan Xie
Quan Xie 1:1 (equal parts, often 5-6g each; or as powder, 1-2g each)

Both are animal-derived Wind-extinguishing substances. Quan Xie (Scorpion) is stronger at penetrating deep into the network vessels to unblock channels and stop pain, while Jiang Can adds Phlegm-transforming action. Together, they form a potent Wind-stopping, channel-unblocking, Phlegm-dissolving pair that addresses both the spasm and the underlying obstruction.

When to use: Facial paralysis with mouth and eye deviation, severe headache, trigeminal neuralgia, epileptic seizures, or stubborn convulsions. This pair forms two of the three herbs in Qian Zheng San.

Bai Zhi
Bai Zhi 1:1 (6-10g each)

Jiang Can dispels Wind and transforms Phlegm, while Bai Zhi (Angelica dahurica) is acrid and aromatic, strongly dispersing Wind from the Yangming channel and reducing swelling. Together, they target Wind-related pain and swelling of the head and face, with enhanced ability to resolve Phlegm nodules.

When to use: Frontal headache, supraorbital pain, toothache, and facial swellings caused by Wind invasion or Phlegm-Heat accumulation.

Zh
Zhe Bei Mu 1:1 to 1:2 (Jiang Can 6-10g : Zhe Bei Mu 10-15g)

Jiang Can transforms Phlegm and dissipates nodules from the exterior (channels and skin), while Zhe Bei Mu (Thunberg Fritillaria bulb) clears Heat-Phlegm and softens hardness from the interior. Together, they form a powerful nodule-dissolving pair that attacks Phlegm masses from both sides.

When to use: Scrofula (swollen lymph nodes), thyroid nodules, mumps, tonsillitis with swelling, and even acne with underlying Phlegm-Heat.

Key Formulas

These well-known formulas feature Jiang Can in a prominent role

Pu Ji Xiao Du Yin 普濟消毒飲 Deputy

Pu Ji Xiao Du Yin (Universal Benefit Decoction to Eliminate Toxin) is Li Dongyuan's famous formula for 'big head plague' (severe head and face swelling from epidemic Heat-toxin). Jiang Can serves as Deputy alongside other Wind-dispersing herbs, using its acrid nature to scatter Wind-Heat from the head and face. This formula demonstrates Jiang Can's role in clearing toxic Heat from the upper body.

Comparable Ingredients

These ingredients have overlapping uses — here's how to tell them apart

Quan Xie
Jiang Can vs Quan Xie

Both extinguish Wind and stop spasms, and both are animal-derived substances often used together. However, Quan Xie (Scorpion) is more powerful at penetrating the network vessels and stopping pain, making it better for severe, deep-seated conditions like trigeminal neuralgia and opisthotonos. It is also toxic and requires careful dosing. Jiang Can is milder, non-toxic at normal doses, and uniquely adds Phlegm-transforming and nodule-dissipating actions. Choose Jiang Can when Phlegm is a prominent part of the pattern; choose Quan Xie when the priority is strong pain relief and channel penetration.

Wu Gong
Jiang Can vs Wu Gong

Wu Gong (Centipede) is warm, acrid, and the most powerful of the three common Wind-extinguishing insects, with the strongest ability to stop severe spasms, opisthotonos, and convulsions. It also attacks toxins and is used for venomous sores. Jiang Can is neutral in temperature, much gentler, and better suited to conditions involving Phlegm or where the pattern is not clearly Cold. Choose Wu Gong for acute, severe spasms; choose Jiang Can for milder or more chronic Phlegm-Wind conditions.

Tian Ma
Jiang Can vs Tian Ma

Both calm Liver Wind, but Tian Ma (Gastrodia rhizome) is sweet and neutral, primarily used for Liver Wind with dizziness, vertigo, and headache from Liver Yang rising. It does not transform Phlegm or treat the throat. Jiang Can is acrid and salty, better at dispersing external Wind from the skin and channels, transforming Phlegm, and treating throat conditions. Choose Tian Ma for internal Wind with dizziness and vertigo; choose Jiang Can for Wind-Phlegm patterns with throat symptoms, skin rashes, or facial paralysis.

Common Substitutes & Adulterants

Related species and common adulterations to be aware of when sourcing Jiang Can

Jiang Can can be substituted by Jiang Yong (僵蛹), which is made by inoculating silkworm pupae (rather than larvae) with Beauveria bassiana. Jiang Yong is considered a cost-effective substitute with similar but weaker therapeutic effects and is sometimes used in clinical practice. Adulteration concerns include silkworms that have died from causes other than Beauveria bassiana infection (such as other pathogens or toxic substances), which lack the characteristic white fungal coating and may have hollow or white silk gland rings on cross-section rather than the required dark brown or black rings. Heavy contamination from lime used in the drying process is another quality concern, as lime can contain heavy metals. Specimens that have absorbed excessive moisture may develop secondary mold growth, which should not be confused with the authentic white Beauveria bassiana mycelium.

Educational content — always consult a qualified healthcare provider or TCM practitioner before using any ingredient.

Toxicity Classification

Classical Chinese pharmacopoeia toxicity rating for Jiang Can

Non-toxic

Jiang Can has relatively low oral toxicity. Animal studies show the LD50 of its water-extracted alcohol-precipitated preparation is approximately 35.84 g/kg by intraperitoneal injection in mice, indicating a wide safety margin. The main safety concern relates to ammonium oxalate, one of its active anticonvulsant components. When metabolized, ammonium oxalate can release ammonia, which is problematic for patients with compromised liver function (hepatic encephalopathy risk). Additionally, the heterologous proteins from the Beauveria bassiana fungus can trigger allergic reactions in susceptible individuals. At high doses (above 20g), abdominal distension has been reported. Proper processing by stir-frying with wheat bran (麸炒僵蚕) can reduce the fishy odor and moderate the herb's properties.

Contraindications

Situations where Jiang Can should not be used or requires extra caution

Avoid

Allergy to insect-derived medicines or silkworm proteins. Jiang Can contains heterologous proteins from the fungus Beauveria bassiana that can trigger allergic reactions including urticaria and acne-like skin eruptions.

Avoid

Hepatic encephalopathy (liver coma). Jiang Can contains ammonium oxalate, which is metabolized to ammonia in the body. In patients with severe liver dysfunction, this can worsen hepatic encephalopathy.

Caution

Bleeding disorders or active hemorrhage. Jiang Can has demonstrated anticoagulant activity and can reduce platelet counts. Patients with coagulation disorders or bleeding tendencies should avoid use.

Caution

Spasms, convulsions, or night crying in children caused by Heart deficiency or Blood deficiency rather than external pathogenic factors. The Ben Cao Jing Shu states that when these symptoms arise from internal deficiency without external pathogenic involvement, Jiang Can is not appropriate.

Caution

Uterine bleeding or postpartum pain not caused by Wind-Cold invasion. Classical sources warn against using Jiang Can for gynecological bleeding or pain when external pathogens are not the underlying cause.

Caution

Excessive or prolonged use may cause lower abdominal cold pain and urinary incontinence, as noted by the Ben Cao Xin Bian, due to the herb's descending and cooling nature at high doses.

Special Populations

Important considerations for pregnancy, breastfeeding, and pediatric use

Pregnancy

Use with caution during pregnancy. Animal studies have shown that Jiang Can can significantly reduce pregnancy rates in mice, supporting the traditional classification of Jiang Can as a pregnancy-cautionary herb (胎前禁忌). The mechanism is not fully understood but may relate to its blood-moving and anticoagulant properties. Pregnant women should avoid use unless specifically prescribed and supervised by a qualified practitioner.

Breastfeeding

There is insufficient safety data regarding Jiang Can use during breastfeeding. As an animal-derived substance containing heterologous proteins and biologically active peptides, there is a theoretical risk of allergenic compounds transferring through breast milk. Additionally, the ammonium oxalate content could theoretically affect the nursing infant. Use during breastfeeding should be approached cautiously and only under professional guidance.

Children

Jiang Can has a long history of pediatric use, particularly for childhood convulsions, febrile seizures, and night crying. It is considered one of the gentler anticonvulsant animal medicines compared to Quan Xie (scorpion) or Wu Gong (centipede). Pediatric dosages should be reduced proportionally based on age and body weight, typically one-third to one-half of the adult dose. For infants and very young children, ground powder form (1-1.5g) may be preferred over decoction. As with all insect-derived medicines, watch for allergic reactions, especially on first use. Not suitable for newborns without professional supervision.

Drug Interactions

If you are taking pharmaceutical medications, be aware of these potential interactions with Jiang Can

Anticoagulant and antiplatelet medications (e.g. warfarin, heparin, aspirin, clopidogrel): Jiang Can has demonstrated anticoagulant activity in pharmacological studies, including inhibition of platelet aggregation and promotion of tPA activity. Concurrent use with anticoagulant or antiplatelet drugs may increase bleeding risk. Coagulation parameters should be monitored if combined use is unavoidable.

Antiepileptic drugs: Jiang Can contains compounds with anticonvulsant activity (including ammonium oxalate and beauvericin). While this may theoretically complement antiepileptic therapy, potential additive effects or interactions with the dosing of pharmaceutical anticonvulsants should be considered.

Hepatotoxic drugs: Because ammonium oxalate in Jiang Can is metabolized to ammonia, patients taking medications that affect liver function should use Jiang Can cautiously, as the ammonia burden could compound hepatotoxic effects.

Dietary Advice

Foods and dietary considerations when taking Jiang Can

When taking Jiang Can for Wind-Heat or Phlegm conditions, avoid greasy, fried, and phlegm-producing foods such as dairy, heavy meats, and excessively sweet foods, as these can generate more Phlegm and counteract the herb's phlegm-transforming action. Patients with a tendency toward digestive sensitivity should take Jiang Can with food or warm ginger water to mitigate potential nausea or stomach discomfort. Avoid alcohol during treatment, as it can increase Heat and potentially exacerbate allergic reactions.

Botanical Description

Physical characteristics and morphology of the Jiang Can source animal

Jiang Can (僵蚕, Bombyx Batryticatus) is not a plant but an animal-derived medicinal substance. It is the dried body of the 4th to 5th instar larva of the domesticated silkworm moth (Bombyx mori Linnaeus, family Bombycidae) that has been infected by and died from the white muscardine fungus Beauveria bassiana (Bals.) Vuillant.

The living silkworm larva is a soft-bodied caterpillar approximately 4-7.5 cm in length, pale white to slightly yellowish in its later instars, with a characteristic horn on the tail. It feeds exclusively on mulberry leaves (Morus spp.). The silkworm is entirely domesticated and no longer survives in the wild. When infected by Beauveria bassiana, the fungal spores germinate on the larval cuticle, penetrate the body, and proliferate internally, eventually killing the larva. The dead silkworm becomes rigid and stiff (hence "jiang" 僵, meaning stiff or rigid), and the fungal mycelium grows outward, coating the body surface in a characteristic white powdery layer of aerial hyphae and spores.

The dried medicinal product appears as slightly cylindrical, curved, and wrinkled bodies, 2-5 cm long and 0.5-0.7 cm in diameter, with a greyish-yellow surface covered in white frost-like fungal growth. The body has 8 pairs of legs and visible segmentation. When broken, the cross-section is flat with a white outer layer and 4 distinctive bright brown or black silk gland rings in the center.

Sourcing & Harvesting

Where Jiang Can is sourced, when it's harvested or collected, and how to assess quality

Harvesting season

Spring and autumn seasons, when silkworms infected with Beauveria bassiana die and are collected for drying.

Primary growing regions

Jiang Can is produced wherever sericulture (silkworm farming) is practiced. The major producing regions in China are Jiangsu, Zhejiang, Sichuan, and Guangdong provinces. Historically, during the Qin-Han period, it was first recorded from Yu county in Henan province. During the Tang and Song dynasties, Henan and Shandong were the main producing areas. Today, Jiangsu and Zhejiang are considered the most important regions for high-quality production, benefiting from long-established silkworm cultivation traditions and well-developed artificial inoculation techniques for Beauveria bassiana. Anhui province is also a significant producer.

Quality indicators

Good quality Jiang Can should be thick, firm, and straight or only slightly curved, with a solid body that is hard and brittle. The surface should be greyish-yellow with an even, abundant coating of white powdery fungal mycelium (the frost-like appearance). When snapped in half, the cross-section should be flat and clean, showing a white outer layer with four clearly visible bright brown or black silk gland rings in the center. The Chinese Pharmacopoeia specifies these four silk gland rings as a key quality indicator. The smell should be mildly fishy and the taste slightly salty. Avoid specimens that are dark, damp, moldy with non-white discoloration, broken, hollow, or lacking the characteristic white fungal coating. Specimens with fewer than four visible silk gland rings are considered lower quality.

Classical Texts

Key passages from the classical Chinese medical texts that describe Jiang Can and its therapeutic uses

Shen Nong Ben Cao Jing (《神农本草经》)

Chinese: 白僵蚕味咸，主小儿惊痫夜啼，去三虫，灭黑䵟，令人面色好，治男子阴疡病。

English: Bai Jiang Can is salty in flavor. It mainly treats infantile convulsions and night crying, expels the three types of parasites, eliminates dark facial spots, improves the complexion, and treats genital sores in men.

Ming Yi Bie Lu (《名医别录》)

Chinese: 味辛，平，无毒。主女子崩中赤白，产后余痛，灭诸疮瘢痕。末之，封疔肿，根当自出，极效。

English: Acrid in flavor, neutral in nature, non-toxic. It mainly treats uterine bleeding with red and white discharge in women, postpartum lingering pain, and eliminates various scar marks. Applied as powder to boils and swellings, the root of the sore will come out on its own with excellent effect.

Ben Cao Gang Mu (《本草纲目》, Li Shizhen)

Chinese: 散风痰结核，瘰疬，头风，风虫齿痛，皮肤风疮，丹毒作痒，痰疟症结，妇人乳汁不通，崩中下血，小儿疳蚀鳞体，一切金疮，疔肿风痔。

English: Disperses Wind-Phlegm nodules, scrofula, head Wind, toothache from Wind, skin Wind sores, erysipelas with itching, malarial Phlegm masses, blocked breast milk in women, uterine bleeding, infantile malnutrition with scaly skin, all traumatic wounds, boils, swellings, and Wind hemorrhoids.

Ben Cao Qiu Zhen (《本草求真》)

Chinese: 僵蚕，祛风散寒，燥湿化痰，温行血脉之品。故书载能入肝兼入肺胃，以治中风失音，头风齿痛，喉痹咽肿。

English: Jiang Can dispels Wind, scatters Cold, dries Dampness, transforms Phlegm, and warms and moves the Blood vessels. Texts record that it enters the Liver and also the Lung and Stomach, treating loss of voice from stroke, head Wind with toothache, and sore throat with swelling.

Historical Context

The history and evolution of Jiang Can's use in Chinese medicine over the centuries

Jiang Can was first recorded in the Shen Nong Ben Cao Jing (《神农本草经》), where it was classified as a middle-grade (中品) medicinal. The name "僵蚕" literally means "stiff silkworm," with "僵" (jiang) meaning stiff or rigid (the classical definition being "dead but not decayed") and "蚕" (can) meaning silkworm. It is also called Bai Jiang Can (白僵蚕, "white stiff silkworm"), Jiang Chong (僵虫, "stiff insect"), and Tian Chong (天虫, "heavenly insect").

Li Shizhen in the Ben Cao Gang Mu provided a definitive summary of the herb's origin, explaining that "蚕病风死，其色自白，故曰白僵" (when silkworms die from Wind disease, their color becomes white, hence the name "White Stiff Silkworm"). The understanding of Jiang Can evolved considerably over the centuries. Early texts focused on its uses for childhood convulsions and cosmetic applications. By the Song dynasty, its range of indications expanded greatly to include stroke, sore throat, and various Wind conditions. The classical formula Qian Zheng San (牵正散) from Yang Shi Jia Cang Fang (《杨氏家藏方》), combining Jiang Can with Bai Fu Zi and Quan Xie, became one of the most famous applications for facial paralysis and is still widely used today.

Originally, Jiang Can was collected as a natural byproduct of sericulture when silkworms spontaneously died from white muscardine disease. As demand grew and natural supply became insufficient, artificial inoculation techniques were developed. Modern production involves spraying Beauveria bassiana spore suspensions onto 4th to 5th instar silkworm larvae under controlled temperature (about 25°C) and humidity conditions, then collecting and drying the stiffened bodies after fungal colonization is complete.

Modern Research

4 published studies investigating the pharmacological effects or clinical outcomes of Jiang Can

1

Comprehensive Review: Traditional Uses, Origins, Chemistry and Pharmacology of Bombyx batryticatus (2017)

Hu M, Yu Z, Wang J, Fan W, Liu Y, Li J, et al. Molecules. 2017; 22(10): 1779.

This review systematically summarized the traditional uses, chemical constituents, and pharmacological activities of Jiang Can. The authors found that Bombyx batryticatus contains diverse compounds including proteins, peptides, fatty acids, flavonoids, nucleosides, steroids, and coumarins. Pharmacological studies demonstrated effects on the nervous system (anticonvulsant, antiepileptic, sedative, and neurotrophic actions), anticoagulant effects, antitumor activity, antibacterial and antifungal properties, antioxidant effects, and hypoglycemic activity.

2

Anticonvulsant Activity of Bombyx batryticatus: Analysis of Bioactive Extracts (Preclinical, 2022)

Guo X, Yan Z, et al. Molecules. 2022; Published in PMC (PMC9740854).

This study investigated the anticonvulsant effects of different polarity fractions of Bombyx batryticatus extracts in a pentylenetetrazol-induced mouse seizure model. The chloroform extract fraction showed significant anticonvulsant effects, prolonging seizure latency and reducing convulsion scores. Using advanced mass spectrometry and molecular networking, 17 compounds were identified for the first time, providing groundwork for understanding the herb's anticonvulsant mechanisms.

PubMed
3

Neuroprotective Effects of Batryticatus Bombyx Against MPTP-Induced Neurotoxicity (Preclinical, 2020)

Kim IS, Yang M, Shin J, et al. Antioxidants. 2020; 9(1): 48.

This preclinical study examined the neuroprotective potential of Bombyx batryticatus in a mouse model of Parkinson's disease induced by MPTP. Treatment with the extract improved behavioral impairments, protected dopaminergic neurons, and maintained striatal dopamine levels. The mechanism appeared to involve inhibition of oxidative damage, suggesting potential relevance to neurodegenerative disease research.

PubMed
4

Quality Formation Mechanism of Bombyx batryticatus Using UPLC-Q-TOF-MS-Based Metabolomics (2019)

Xing D, Shen G, Li Q, Xiao Y, Yang Q, Xia Q. Molecules. 2019; 24(20): 3780.

This study used metabolomics to investigate how the chemical composition and anticonvulsant activity of Bombyx batryticatus develop during the fungal stiffening process. Specimens stiffened for 5 and 9 days showed significant anticonvulsant effects, while freshly dead specimens (day 1) did not. The fungal infection process was shown to generate active polypeptides through hydrolysis of silkworm proteins and fats, establishing beauvericin as a key quality marker.

Research on individual TCM herbs is growing but still limited by Western clinical trial standards. These studies provide emerging evidence and should be considered alongside practitioner expertise.