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To improve the economic viability of Chlorella as feedstock for food commodities, a serial of concentrations of low-cost sweet sorghum juice (SSJ), alternative to glucose, were used for the fermentation of Chlorella pyrenoidosa. A high biomass and protein production (8.91 g L biomass and 4.52 g L protein) was revealed with 20% SSJ. To further increase productivity, heavy-ion irradiation-mediated mutagenesis was employed to create mutants where a strain K05, with desired phenotypes (increased biomass and protein production in pilot-scale fermentation), was screened. Compared with the parental strain, the production of biomass, proteins, and chlorophylls of mutant K05 increased by 11.6%, 31.8%, and 7.6%, respectively. Production capacities under industrial scale (two-ton) further pinpoint the stability and scalability of mutant K05. These results suggest that advances in cultivation techniques coupled with artificial strain improvement will further promote microalgae as an attractive platform of functional food.
This article was published in the following journal.
Name: Bioresource technology
Microplastics are widely identified in aquatic environments, but their impacts on phytoplankton have not been extensively studied. Here, the responses of Chlorella pyrenoidosa under polystyrene (PS) m...
The physicochemical characteristics and in vitro antioxidant and in vivo anti-ageing activities of partial purified Chlorella pyrenoidosa polysaccharides (PCPPs) were investigated. The building blocks...
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A species of green microalgae in the family Chlorellaceae. It is used as a model organism for PHOTOSYNTHESIS, and as a food supplement (DIETARY SUPPLEMENTS).
Creation of an artificial external opening or fistula in the intestines.
Creation of an artificial external opening into the stomach for nutritional support or gastrointestinal compression.
An international organization whose mission is to stimulate world trade and economic progress by offering a forum where governments can collectively develop and refine social and economic policies.
Significant decline in economic activity spread across the economy, lasting more than a few months, normally visible in real gross domestic product, real income, employment, industrial production, and wholesale-retail sales. (National Bureau of Economic Research, Inc, www.nber.org/cycles.html, accessed 4/23/2009)
Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism ...