FOOD SCIENCE ›› 2018, Vol. 39 ›› Issue (6): 130-134.doi: 10.7506/spkx1002-6630-201806021

• Bioengineering • Previous Articles     Next Articles

Lactic Acid Production by Fermentation of Soybean Molasses with Lactic Acid Bacteria and Carbohydrate Metabolism

JIANG Yangjuan, XU Li, CHEN Meisi, ZHOU Xiaomin, HAN Cuiping*, WANG Song*   

  1. (College of Food Science, Northeast Agricultural University, Harbin 150030, China)
  • Online:2018-03-25 Published:2018-03-14

Abstract: Lactobacillus delbrueckii ssp. bulgaricus KLDS1.8501, L. acidophilus KLDS1.0327, L. acidophilus ATCC11975, L. plantarum subsp. plantarum CICC23168, L. casei ATCC393 and L. plantarum NAU322 were separately utilized to ferment soybean molasses to produce lactic acid. The lactic acid production and carbohydrate metabolism of these six strains were analyzed by high performance liquid chromatography (HPLC). The results indicated that L. plantarum subsp. plantarum CICC23168 showed better growth (6.66 × 109 CFU/mL), greater sugar consumption (22.48 g/L) and higher production (12.18 g/L) of lactic acid during 24 h incubation at 37 ℃ in 15 °Brix soybean molasses, compared to the other bacteria. Therefore, L. plantarum subsp. plantarum CICC23168 is a potential strain for producing lactic acid by using soybean molasses.

Key words: lactic acid bacteria, soybean molasses, fermentation, lactic acid, carbohydrate metabolism

CLC Number: