BIOMASS PRODUCTION AND REDUCTION OF POLLUTION FROM WHEY. 1- USE OF LACTIC ACID BACTERIA FOR IMPROVING BIOMASS PRODUCTION BY Kluyveromyces marxianus var. lactis. | ||||
Journal of Food and Dairy Sciences | ||||
Article 1, Volume 25, Issue 5, May 2000, Page 2767-2785 PDF (806.7 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/jfds.2000.258963 | ||||
View on SCiNiTO | ||||
Authors | ||||
Elein Girgis1; A. El-Nimer2; A. Abd El-Fattah1; Jihan Kassem2 | ||||
1Dairy Science and Technology Department, Faculty of Agriculture, Cairo University | ||||
2Food Technology and Nutrition Division, National Research Center, Dokki, Egypt. | ||||
Abstract | ||||
K. marxianus var. lactis was grown in different whey media (sweet, acid and salted (5%) whey) and permeate and tested for optimum incubation period (24-120 hr) for biomass production. The effect of adding either yoghurt starter or L.helviticus (at 2% rate) was also investigated. The optimum pH (3,4,5,6&7), type of supplement to enhance biomass production and the ability of the growth in salted why (0, 3, 5, 7, & 9%) in the presence of lactic acid bacteria was also studied. The best biomass production by K.marxianus var. lactis was in sweet whey at incubation period of 96 hr in the presence of L.helviticus (2%) and yeast extract (0.2%) at pH 4 to 5. It also caused a high reduction in lactose content and BOD of whey. The biomass production decreased as the salt concentration increased, but in the presence of L.helviticus salt tolerance increased and biomass production increased by 14-35% in the presence of up to 9% salt. | ||||
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