Collection and component analysis of aquatic plants with a scope for fermentative utilization.
Collection and component analysis of aquatic plants with a scope for fermentative utilization.
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具有发酵利用范围的水生植物的采集及成分分析。
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
G. Yoshida
中科院分区：
文献类型：
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作者：
T. Miyoshi;M. Uchida;M. Kaneniwa;G. Yoshida
A total of 107 samples of aquatic plants including 86 seaweeds, 17 seagrasses, one freshwater plant, and three microalgae were collected, and their biochemical components were analyzed with physical properties related with pretreatment and processing. For the component analysis, proximate and sugar analysis were conducted with a scope to promote fermentative utilization of aquatic plants. Mean value of moisture was 87.2%, and proximate components on dry basis were 16.2% protein, 56.1% carbohydrate, 1.8% lipid, 25.5% ash, and 43.5% dietary fiber, respectively. Macroalgae, seagrass and freshwater plants were rich in carbohydrate (57.0%), while microalgae were rich in protein (48.2%) and lipid (7.9%). Mean values of total and reducing sugars quantified based on colorimetric methods for acid and enzymatic hydrolysate of all 107 samples were 33.1% and 10.6%, respectively, while the total sugars in red algae were 41.2% on average and the highest among the groups. Mean values of sugar components were 7.3% for glucose, 5.7% for galactose, and 3.7% for mannitol/mannose, respectively, for acid hydrolysate of all 107 samples. The sum of glucose and galactose, both suitable substrates for microbial fermentation, was 12.8% for all 107 samples, while that of red algae was 30.4%, the highest among the seaweed groups. This suggests the highest quantity of fermentation products such as ethanol will be obtained from red algae.
