Effect of gamma irradiation in the coffee grounds oil and kernel mango fat properties

IF 1.5 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-09-09 DOI:10.1007/s10967-024-09713-1

Paulo Victor David Cavalcante, Lindomar Avelino da Silva, Carlos Henrique Lucena Araújo, Glória Maria Vinhas, Kátia Aparecida da Silva Aquino

引用次数: 0

Abstract

In this study, coffee ground oil (CGO) and kernel mango fat (KMF) were exposed to gamma irradiation at 25 kGy and physicochemical properties were analyzed by ¹H NMR, FT-IR, and TGA methods. A decrease in the average molecular weight and iodine index of KMF irradiated was observed. The CGO irradiated undergoes more unsaturated, and no significant changes (p < 0.05) were observed for the physicochemical properties studied. The thermal degradation behavior of KMF is different from CGO due to its higher saturation degree. The unsaturation degree plays an important role in thermal degradation behavior of studied lipids exposed to gamma irradiation.

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伽马辐照对咖啡渣油和芒果核脂肪特性的影响

本研究将咖啡渣油（CGO）和芒果核脂肪（KMF）置于 25 kGy 伽马辐照下，并采用 1H NMR、傅立叶变换红外光谱和热重分析法对其理化性质进行了分析。结果表明，辐照后的 KMF 平均分子量和碘指数都有所下降。经辐照的 CGO 发生了更多的不饱和变化，所研究的理化性质没有观察到显著变化（p < 0.05）。由于饱和度较高，KMF 的热降解行为与 CGO 不同。不饱和度对所研究的脂类在伽马辐照下的热降解行为起着重要作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

期刊介绍： An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.