Journal
TRENDS IN FOOD SCIENCE & TECHNOLOGY
Volume 117, Issue -, Pages 148-162Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tifs.2021.03.004
Keywords
Spices; Capsaicin; Hydroxyl-alpha-sanshool; Flavonoids; Alkylamides; Clinical uses
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Funding
- National Key Research and Development Program of China [2018YFD0400803]
- Key Research and Development Program of Zhenjiang City, China [GJ202012, NY2020009]
- Project of Faculty of Agricultural Equipment of Jiangsu University
- Post-doctoral Fund of Jiangsu Province [2019K016]
- Research Foundation of Jiangsu University [15JDG058]
- Special Fundamental Research Fund for the Central Public Scientific Research [562018Y-5983]
- Science and Technology Program of China State Administration for Market Regulation [2019MK117]
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This study compared the bioactive composition, organoleptic properties, and pharmacological activities of Sichuan pepper (pericarps and leaves) and chili pepper (fruits). It found that both peppers are rich in alkylamides, polyphenols, and odorants, but the structures of their bioactive ingredients are significantly different. Capsaicinoids are primarily identified in chili peppers while coumarins are specific to Sichuan pepper. The pungent sensations evoked by capsaicin and hydroxyl-alpha-sanshool are distinct due to their interactions with membrane ion channels. Additionally, extracts and compounds from both peppers show potential in alleviating various health conditions, but further clinical trials are needed to confirm their effects.
Background: Both Chili pepper (CP) and Sichuan pepper (SP) have long been used for culinary purposes throughout Asia. It is well known CP and SP are well accompanied in Sichuan Cuisine, producing a typical pungent sensation. In recent decades, increasing evidences suggest a series of health benefits and pharmacological effects are associated to the two peppers. Now, a systematic comparison of structural and bioactivities diversity of bioactive ingredients from edible parts of two peppers are necessary to address their future application. Scope and approach: Bioactive composition, organoleptic property as well as pharmacological activity in cellular, animal, and human subjects are compared between SP (pericarps and leaves) and CP (fruits). Key findings and conclusions: Both SP and CP are rich in alklyamides, polyphenols, and odorants but their structures are greatly variable. Carotenoids are primarily identified in CP but rather in SP, whereas coumarins are the specific ingredients in SP as compared with CP. Pungent sensations evoked by capsainoids and sanshools are obvious distinct, which is attributed to different mechanisms of interaction with membrane ion channels. Due to these bioactives, especially for capsaicin and hydroxyl-alpha-sanshool, extracts and purified compounds of CP and SP presented attenuation effects against pain, obesity and hyperlipidemia, diabetes, atherosclerosis, gastrointestinal disorder, tumors, and neurodegenerative diseases even though large-scale and well-designed clinical trials are highly needed. However, more approaches should be conducted to overcome side effects of capsaicin during clinical application. Also, the pharmacological interaction among bioactives in two peppers should be further verified in physiological condition.
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