Food waste as nutrient source in heterotrophic microalgae cultivation
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Food waste as nutrient source in heterotrophic microalgae cultivation. / Pleissner, Daniel; Lam, Wan Chi; Sun, Zheng et al.
In: Bioresource Technology, Vol. 137, 06.2013, p. 139-146.Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Food waste as nutrient source in heterotrophic microalgae cultivation
AU - Pleissner, Daniel
AU - Lam, Wan Chi
AU - Sun, Zheng
AU - Lin, Carol Sze Ki
PY - 2013/6
Y1 - 2013/6
N2 - Glucose, free amino nitrogen (FAN), and phosphate were recovered from food waste by fungal hydrolysis using Aspergillus awamori and Aspergillus oryzae. Using 100 g food waste (dry weight), 31.9 g glucose, 0.28 g FAN, and 0.38 g phosphate were recovered after 24 h of hydrolysis. The pure hydrolysate has then been used as culture medium and nutrient source for the two heterotrophic microalgae Schizochytrium mangrovei and Chlorella pyrenoidosa, S. mangrovei and C. pyrenoidosa grew well on the complex food waste hydrolysate by utilizing the nutrients recovered. At the end of fermentation 10–20 g biomass were produced rich in carbohydrates, lipids, proteins, and saturated and polyunsaturated fatty acids. Results of this study revealed the potential of food waste hydrolysate as culture medium and nutrient source in microalgae cultivation.
AB - Glucose, free amino nitrogen (FAN), and phosphate were recovered from food waste by fungal hydrolysis using Aspergillus awamori and Aspergillus oryzae. Using 100 g food waste (dry weight), 31.9 g glucose, 0.28 g FAN, and 0.38 g phosphate were recovered after 24 h of hydrolysis. The pure hydrolysate has then been used as culture medium and nutrient source for the two heterotrophic microalgae Schizochytrium mangrovei and Chlorella pyrenoidosa, S. mangrovei and C. pyrenoidosa grew well on the complex food waste hydrolysate by utilizing the nutrients recovered. At the end of fermentation 10–20 g biomass were produced rich in carbohydrates, lipids, proteins, and saturated and polyunsaturated fatty acids. Results of this study revealed the potential of food waste hydrolysate as culture medium and nutrient source in microalgae cultivation.
KW - Food waste hydrolysis
KW - Microalgae
KW - Polyunsaturated fatty acids
KW - Food and feed
KW - Biology
KW - Chemistry
U2 - 10.1016/j.biortech.2013.03.088
DO - 10.1016/j.biortech.2013.03.088
M3 - Journal articles
C2 - 23587816
VL - 137
SP - 139
EP - 146
JO - Bioresource Technology
JF - Bioresource Technology
SN - 0960-8524
ER -