Effect of red koji as a Starter Culture in “Wanergao”: A Traditional Fermented Food in China,Food Science & Nutrition

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Effect of red koji as a Starter Culture in “Wanergao”: A Traditional Fermented Food in China
Food Science & Nutrition ( IF 3.5 ) Pub Date : 2020-09-01 , DOI: 10.1002/fsn3.1849
Xuefeng Zeng ₁ , Zhongyue Tang ₁ , Wei Zhang ₂ , Lapin He ₁ , Li Deng ₁ , Chun Ye ₁ , Jin Fan ₁

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The objective of this study was to explore the effect of red kojis on essential indices of Wanergao. The results showed that red koji‐inoculated Wanergao showed higher pH values (4.38 ± 0.06 and 4.39 ± 0.06) and lower TA values (1.61 ± 0.05 and 1.63 ± 0.05) compared to the control group. LAB and yeast in the starter culture group gradually increased to 7.57 ± 0.12, 7.64 ± 0.15 log cfu.g⁻¹ and 8.59 ± 0.21, 8.64 ± 0.23 log cfu.g⁻¹, respectively. During fermentation, the dominant microorganism was Lactobacillus plantarum and Saccharomyces cerevisiae. Compared to the Wanergao made using traditional backslopping, the red koji‐inoculated Wanergao contained more amylases, EAA and DAA contents compared to the control sample. The red kojis and control samples presented different hardness, chewiness, and cohesiveness, as well as similar values in springiness, gumminess, and adhesiveness. Sensory analysis also showed higher chewiness aroma and resilience of Wanergao in the starter culture group than in the control group.

更新日期：2020-10-28

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