论文
论文标题: Study on the Effect of Spray Drying Process on the Quality of Microalgal Biomass: a Comprehensive Biocomposition Analysis of Spray-Dried S. acuminatus Biomass
作者: Zhang, Haiyang; Gong, Ting; Li, Jing; Pan, Bo; Hu, Qiang; Duan, Ming; Zhang, Xuezhi
出版刊物: BIOENERGY RESEARCH
出版日期: MAR
出版年份: 2022
卷/期:
DOI: 10.1007/s12155-021-10343-8
论文摘要: Spray drying is a very popular method for microalgal biomass drying; however, systematic research on the response of the biochemical composition during the process of spray drying has not been addressed thus far. This study investigated the influence of the inlet temperature and the initial solid content on the biochemical composition of spray-dried Scenedesmus acuminatus biomass. The fatty acid composition and contents of CHNS, lipids, carbohydrates, protein, starch, and pigments were analyzed to characterize the quality and bioactivity of the dried product. The results showed that the moisture content of the dried microalgal powder decreased with increasing inlet temperature and initial solid content, and the lowest moisture content of 2.37%, with a higher drying yield of 84%, was achieved at an optimized inlet temperature of 220 degrees C and an initial solid content of 16%. The biochemical compositions of CHNS, total lipids, carbohydrates, protein, starch, and fatty acids in the spray-dried biomass were similar to those in the freeze-dried biomass and were barely altered throughout the spray drying process. The pigment partially degraded as the inlet temperature increased; however, this degradation could be alleviated by increasing the initial solid content of the microalgal suspension because cell aggregates provided protection. Thermogravimetric analysis (TGA) further confirmed that spray drying did not affect the quality of proteins, lipids, or carbohydrates, suggesting that the spray drying technique could be applied to S. acuminatus for the production of both biofuel and nutritional supplements. These results may serve as a reference for the selection of the drying method, the utilization of the nutritional components in S. acuminatus, and the selection of biochemical parameters for spray drying performance evaluation.
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  • 水产品种创制与高效养殖全国重点实验室
  • 中国科学院藻类生物学重点实验室
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  • 武汉白暨豚保护基金会
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  • 中国动物学会原生动物学分会
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  • 中国水产学会鱼病学专业委员会
  • 中国鱼类学会
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  • 国家斑马鱼资源中心
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  • 水生生物博物馆
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