Effects of different growth patterns on nutritional quality of Nostoc commune

Abstract

Objective: Replacing wild resources with artificially cultivated Nostoc commune to protect the natural environment. Methods: Compare the biochemical composition, texture characteristics, and sensory evaluation of indoor, outdoor cultivation and wild N. commune, while using outdoor cultivation of Nostoc sphaeroides as a control in the above three aspects. Results: The ratio of dry weight to wet weight of wild N. commune was the largest （2.42%）, and its hardness and elasticity were the highest, which were 1.184 N and 78.5%, respectively. The content of phycoerythrin and polysaccharide of outdoor N. commune were the lowest, which were 0.19% and 24.45%, respectively. The allophycocyanin and protein contents of wild N. commune were the lowest, which were 0.33% and 20.33% respectively. The chlorophyll and phycocyanin contents of indoor N. commune were the highest, which were 0.82% and 2.75%, respectively. At the same time, the sensory evaluation results showed that there was no significant difference in the taste of N. commune among the different growth patterns （P＜0.05）. Conclusion: Artificial cultivated N. commune can completely replace wild resources for consumption and further processing of products.

Keywords

• nostoc commune
• indoor cultivation
• outdoor cultivation
• wild
• biochemical composition
• sensory evaluation
• textural properties