초록 |
Current research aimed to increase mixotrophic biomass from organic carbon sources by exploring best light conditions. Glucose, acetic acid and glycerol were studied for effects on mixotrophy under four light conditions. Light irradiance exhibited variability in growth response and photosynthetic efficiency based on type of substrates in mixotrophy. Continuous light-deficient condition was adequate for effective mixotrophic growth and energy saving for glucose. However, light sufficient condition required for effective acetic acid supported mixotrophic growth. Mixotrophic benefits from glycerol and its uptake by Chlorella protothecoides was negligible in all light conditions. Investigation of heterotrophic contribution by various substrates in overall mixotrophic yield, glucose offered maximum approx. 43% contribution. |