期刊
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
卷 57, 期 10, 页码 6795-6804出版社
WILEY
DOI: 10.1111/ijfs.16031
关键词
Amylase; citrus peel; essential oil; kinetic analysis; fluorescence quenching
资金
- Shiraz University [88-GR-AGRST-108]
The peel of citrus fruits, commonly wasted in processing, contains essential oils with antioxidant properties and the ability to inhibit amylase and glucosidase. The primary components of citrus peel essential oil include linalool, limonene, and linalool acetate. Citrus peel essential oil shows strong antioxidant activity and effectively inhibits amylase and glucosidase.
The most common waste in citrus processing is their skin, which contains high amounts of essential oil. The antioxidant, anti-glucosidase, and anti-amylase properties of essential oils extracted from fresh bitter orange, lime, lemon, pomelo, grapefruit, mandarin, and sweet orange peels were examined. Linalool (18.26%-29.08%), limonene (17.08%-22.44%), linalool acetate (17.17%-30.47%), alpha-terpineol (6.08%-11.06%), geraniol (2.05%-6.30%), beta-ocimene (1.52%-5.02%), nerolidol (2.93%-4.00%), beta-pinene (2.71%-3.29%), farnesol (2.08%-2.97%), and geranyl acetate (1.89%-2.80%) were found to be the primary components of citrus peel essential oil. Citrus peel essential oil displayed a good antioxidant capacity ranging from 375 to 643 mg Trolox equivalent/g. Citrus peel essential oils strongly inhibit amylase (520 to 738 mg acarbose equivalent/g) and glucosidase (475 to 780 mg acarbose equivalent/g). According to kinetic analysis, fluorescence quenching, and ultraviolet absorption, citrus peel essential oils inhibit amylase and glucosidase with a mixed competitive, non-competitive, and uncompetitive manner. Some citrus varieties have long been used to treat diabetes and obesity. While citrus fruits are consumed worldwide, the citrus peel is typically discarded; hence, using the citrus peel in the culinary and medical industries might have a positive economic impact on managing diabetes.
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