Choi Hyang-Sook
Department of Food and Nutrition, Duksung Women's University, 419 Ssangmun-dong, Tobong-gu 132-714 Seoul, South Korea.
J Agric Food Chem. 2006 May 3;54(9):3254-8. doi: 10.1021/jf052409j.
This study was conducted to determine the lipolytic effects of eight kinds of citrus peel oils and their components. All of the citrus peel oils revealed lipolytic effects on olive oil model solution ranging from 10.9 to 73.8%. Hakyul (Citrus natsudaidai Hayata) showed the highest lipolytic effect (73.8%), followed by yuza (Citrus junos Sieb. ex Tanaka, 68.1%) and lemon (Citrus limonium, 63.4%), and their effects were comparable with or stronger than that of 5 mM raspberry ketone (p < 0.05). Among 17 authentic compounds relating to citrus peel oils, octanal (78.6%) showed the highest lipolytic effect, followed by gamma-terpinene (76.3%), limonene (75%), terpinen-4-ol (70.7%), nerol (69.9%), p-cymene (67.7%), and geranyl acetate (67.2%), and their effects were stronger than that of 5 mM raspberry ketone (p < 0.05). Ethyl acetate, alpha-pinene, myrcene, citronellal, linallyl acetate, and citronellol exhibited poor lipolytic effect in the model solution. Lipolytic effect was found to be high when the oils included a higher content of gamma-terpinene and p-cymene. Limonene showed potential lipolytic effect, and its effect is likely to be enhanced by the presence of gamma-terpinene and p-cymene. It is considered that monoterpene hydrocarbons consisting of one or two double bonds would have stronger lipolytic effect than those having three double bonds.
本研究旨在确定八种柑橘皮油及其成分的脂解作用。所有柑橘皮油对橄榄油模型溶液均显示出脂解作用，范围为10.9%至73.8%。夏橘（Citrus natsudaidai Hayata）表现出最高的脂解作用（73.8%），其次是柚子（Citrus junos Sieb. ex Tanaka，68.1%）和柠檬（Citrus limonium，63.4%），它们的作用与5 mM树莓酮相当或更强（p < 0.05）。在与柑橘皮油相关的17种纯化合物中，辛醛（78.6%）表现出最高的脂解作用，其次是γ-萜品烯（76.3%）、柠檬烯（75%）、萜品-4-醇（70.7%）、橙花醇（69.9%）、对伞花烃（67.7%）和乙酸香叶酯（67.2%），它们的作用比5 mM树莓酮更强（p < 0.05）。乙酸乙酯、α-蒎烯、月桂烯、香茅醛、乙酸芳樟酯和香茅醇在模型溶液中表现出较差的脂解作用。当油中γ-萜品烯和对伞花烃含量较高时，脂解作用较高。柠檬烯显示出潜在的脂解作用，其作用可能会因γ-萜品烯和对伞花烃的存在而增强。据认为，由一个或两个双键组成的单萜烃比具有三个双键的单萜烃具有更强的脂解作用。
