期刊
PLANT FOODS FOR HUMAN NUTRITION
卷 71, 期 3, 页码 294-300出版社
SPRINGER
DOI: 10.1007/s11130-016-0559-0
关键词
Mandarin waste; Phenolics; Antioxidant capacity; Drying temperature
资金
- CONACyT
The mandarin industry is generating more waste due to the increasing demand for juice. In this study, extractable and non-extractable phenolics as well as 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS), ferric reducing ability of plasma (FRAP), and oxygen radical absorbance capacity (ORAC) antioxidant activities in Satsuma mandarin waste dried at different temperatures were determined. The amounts of non-extractable total phenols, total flavonoids, and condensed tannins measured in mandarin waste dried at 120 degrees C were 39.4, 44.3, and 45.6 %, respectively, which were higher than those of fresh-mandarin waste. Dried mandarin waste is rich in extractable and non-extractable hesperidin (259.86 and 182.52 mg/g, respectively) and eriocitrin (85.12 and 197.24 mg/g, respectively), as well as non-extractable gallic acid (36.08 mu g/g). The antioxidant capacities of extractable and non-extractable phenolics, from the highest to the lowest, were ABTS > ORAC > DPPH > FRAP and ORAC > ABTS > DPPH > FRAP, respectively. The information reported here may encourage mandarin industry operators to re-evaluate their by-products, extending the application of mandarin fruits and reducing waste.
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