2023年7月21日 · Flavanols, sometimes called flavan-3-ols or catechins, are a type of chemical compound found in various fruits, vegetables, and plants. Research from 2022 suggests that flavanols may have...

黄烷醇（Flavanols）是一种天然植物化合物，化学式为C15H14O2 [1]。 存在于 水皂角 、 可可 、茶、红酒、水果和蔬菜中，而可可中的黄烷醇含量最高。 黄烷醇性质不稳定，易氧化和聚合，且大多为无定形粉末，同时具有多种立体异构形式，性质极为相似，分离纯化的难度较大。 黄烷醇可以通过维持人的血管健康保持正常的血压；黄烷醇可以通过降低血液中 血小板 的黏附性来维持健康的血流；黄烷醇还可以作为抗氧化剂维持心脏健康。 黄烷醇是一种天然植物化合物，存在于 …

Flavonols are a class of flavonoids that have the 3-hydroxyflavone backbone (IUPAC name: 3-hydroxy-2-phenylchromen-4-one). Their diversity stems from the different positions of the phenolic –OH groups.

2023年7月11日 · Flavonoids are plant compounds with a variety of health benefits. Many plant-based foods, as well as beverages such as tea and wine, contain flavonoids. Many studies have shown the benefits of...

黄酮醇 （英語： flavonol）是一类 黄酮类化合物，其具有3-羟基黄酮骨架。 黄酮醇广泛存在于水果和蔬菜中，包括茶飲、西紅柿、羽衣甘藍、花椰菜等。 攝取富含抗氧化功能的黃酮醇食物，据研究显示随着年龄的增长，整体认知和多种认知能力下降较慢 [1]。 西方人每日黄酮醇摄入量为20至50毫克 [2]。 黄酮醇 互变异构 诱导了双荧光现象，这有利于植物抵抗 紫外线 和呈现花色 [3]。 黄酮类化合物对 细胞色素P450 的活性有影响。 黄酮醇是 CYP2C9 [4] 和 CYP3A4 [2] 的的抑制 …

Flavanols are polyphenolic constituents that have strong binding affinity to proteins. Flavanols inhibit digestive enzyme activity and thus have health benefits. We review recent literature concerning the structure and function of plant flavanols. Athrinandan S. Hegde, ...

2021年3月1日 · Observational studies have shown that eating foods rich in flavanols is linked with less cognitive decline as people age. New research suggests a possible reason why: flavanols appear to improve blood flow to the brain. Researchers gave cocoa flavanols to 18 healthy adults in two separate trials.

2007年7月27日 · Flavanols, or flavan-3-ols, are a family of bioactive compounds present in cocoa, red wine, green tea, red grapes, berries and apples. With a basic monomer unit of (−)-epicatechin or (+)-catechin, flavanols can be present in foods and …

黄酮醇类 (flavonols)是黄酮类化合物中的一类。 其中最简单的黄酮醇类化合物为7-羟基黄酮醇：唯一一个分子中含有氯原子取代黄酮醇类是chlorflavanin，具有抗真菌活性；含氧取代最多的黄酮醇是digicitrin。 槲皮素 (quercetin)则是植物界分布最广、最常见的黄酮醇类化合物。 芦丁 (rutin)是最常见的黄酮醇苷化合物，6-C-β-D-葡萄糖槲皮素苷 (6-C-β-D-glucosylquercetin)则是已发现的为数不多的黄酮醇碳苷之一。 黄酮和黄酮醇具有C2～C3双键、C4有羰基、C环成环，黄酮，有羟 …

Flavonoids are phytoconstituents with anti-inflammatory, antimutagenic, anticarcinogenic, and antimicrobial properties.