케르세틴

용도식품이 변질되는 것을 방지하기 위하여 산화방지제로서 사용되는 식품첨가물이다.

용도케르세틴, 플라보노이드 가족의 일원은, osteoporosis에 대하여 암을 위한 위험을, 보호 감소시키는 심장 혈관 건강의 개선을 포함하여 많은 유리한 건강 효과를, 발휘합니다. 그리고 그것에는 또한 항염증제의, 항알레르기와 항독소 효력이 있습니다.

용도케르세틴은 뒤에 오는 조건의 예방 그리고 처리에서 다양한 잠재적인 치료 용도를, 1 차적으로 제안합니다: 알레르기, 천식 및 꿀벌통: 케르세틴은 basophils (백혈구의 유형)와 비만 세포 (결합 조직에 있는 큰 세포)에서 히스타민 방출을 금할지도 모릅니다.

개요The name of quercetin has been used since 1857, which is derived from quercetum (oak forest) after Quercus. Quercetin is widely found in flowers, leaves, and fruits of various plants. Vegetables (such as onions, ginger, celery, etc.), fruits (such as apples, strawberries, etc.), beverages (such as tea, coffee, red wine, fruit juice, etc.), and more than 100 kinds of Chinese herbal medicines (such as Threevein Aster, mountain white chrysanthemum, Huai rice, Apocynum, Ginkgo biloba, etc.) contain this ingredient. Threevein Aster is a Chinese herbal medicine and used in Jiangxi province, China, for more than 30 years. Its plant name is three veins Mala, Compositae. It is rich in drug sources, which can be found in Southern provinces of China. Clinical practice proved that it has significant anti-inflammatory and expectorant effects, and it is a good prescription for the treatment of elderly chronic bronchitis.

역사In 1936, Szent-Gyorgyi firstly reported the separation and identification of biological activity of quercetin. Usually quercetin is presented in the form of glycosides such as lutin, quercitrin, and mycoside, which can be hydrolyzed to get the quercetin. Quercetin has a polyphenol hydroxyl structure, which is of weak lipophilicity and poor hydrophilicity, resulting in its low bioavailability and limiting its clinical application. The synthesis of phenolic derivatives improves its bioavailability, which are lipid-soluble quercetin derivatives such as 3-O-methylquercetin, hydrophilic quercetin derivatives such as 3′-ON-carboxymethylformamide quercetin, and quercetin glycosides. Threevein Aster, having quercetin as one of the main active ingredients, has been used for the domestic clinical treatment for chronic bronchitis in China since 1971.

용도Quercetin has been used as an antioxidant which reversed the immunosuppressive effects of high glucose and hyperglycemic sera in type 2 diabetic patients.It has been used as a detoxifying phytochemical in Apis mellifera.It has been used as a positive control in DPPH (2,2- diphenyl-1-picryhydrazyl) radical scavenging assay. It has also been used for the preparation of calibration curve to determine total flavonoid content.