Chinese herbs ·
Immature and mature bitter orange (枳实 / 枳壳): harvest timing creates two medicines
Immature and mature bitter orange is known as zhǐ shí / zhǐ ké in Chinese medicine. This field note centres on where the material lives or grows, how it is collected, and what processing changes before it reaches professional practice.
Where it lives and how it grows
Bitter orange is an evergreen citrus tree managed through pruning, flowering, fruit set, and seasonal pest control. One orchard can supply materials harvested at different stages.
Harvest
Very young fallen or picked fruits become Zhi Shi, while larger nearly mature fruits become Zhi Ke. Date, diameter, and maturity are therefore part of the medicine's identity.
Processing
The fruits are cut across their diameter and dried; larger Zhi Ke pieces show a broader peel and internal structure. Additional bran-frying creates another named preparation.
Traditional uses and symptom patterns
Zhi Shi is traditionally described as stronger for fullness and obstruction patterns, while Zhi Ke is considered gentler. Abdominal pain, persistent vomiting, or bowel obstruction symptoms need urgent assessment.
What the evidence can and cannot say
The reviewed sources support source identity, material distinction, and the cultivation or processing account. They do not establish that this material is an effective treatment for a reader's symptoms; clinical recommendations, products, formulas, and doses remain outside this article.
Safety and interactions
Bitter-orange constituents can affect heart rate, blood pressure, and medicine metabolism, especially in concentrated products or combinations with stimulants. Cardiovascular disease, pregnancy, and interacting medicines require caution.
Sources
- 【FULL】《本草中国第二季》第9集水火：古老制药技艺的坚守 The Tale Of Chinese Medicine S2 EP9 Ancient medicine processing
The Tale of Chinese Medicine Official Channel · Primary footage and narration for habitat, cultivation, harvest, processing, and traditional-use context.
- HKCMMS: Aurantii Fructus Immaturus
Hong Kong Chinese Medicine Regulatory Office · Official immature-fruit source, harvest stage, processing, identity, and quality standards.
- HKCMMS: Aurantii Fructus
Hong Kong Chinese Medicine Regulatory Office · Official mature-fruit source, harvest stage, processing, identity, and quality standards.
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