Supercritical fluid extraction effectively removes phthalate plasticizers in spores of Ganoderma lucidum
2018
Pan Li, South China Agricultural University, Guangzhou, China | Zuan-hao Liang, South China Agricultural University, Guangzhou, China | Zhuo Jiang, South China Agricultural University, Guangzhou, China | Ziyou Qiu, South China Agricultural University, Guangzhou, China | Bing Du, South China Agricultural University, Guangzhou, China | Yu-bing Liu, Guangzhou Dnjoy Biotechnology Co. Ltd., Guangzhou, China | Wen-zhi Li, Infinitus (China) Company Ltd., Guangzhou, China | Li-hao Tan, Infinitus (China) Company Ltd., Guangzhou, China
Phthalate plasticizers residue in food is a serious threat to public health. Spores of Ganoderma lucidum are easy to be contaminated with phthalates during collection and processing. In this study, supercritical fluid extraction (SFE) was performed to remove phthalates in spores of G. lucidum, and the effects on acid and peroxide values of spores’ oil were also evaluated. The results showed SFE removed 100% of the residual di-iso-butyl phthalate, di-nbutyl phthalate and di-2-ethylhexyl phthalate in the spores of G. lucidum. No significant differences in polysaccharides content and fatty acid composition were observed between SFE and control spores. However, the triterpenoid extracts of SFE spores had a 7.45% increase, significantly higher than that in control spores. Accelerated oxidation tests further implied that SFE could improve the stability of spores’ oil. Our results suggested SFE is a potential approach to remove phthalate from food related products.
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