Optimal Conditions for Carotenoids Production by Rhodotorula rubra MJU11 in Combination with Lactobacillus acidophilus KK−03 in Fish Meal

Authors

  • Nutnaree Naragunta Department of Biotechnology, Maejo University Phrae Campus, Phrae
  • Nuttaporn Chanchay Department of Biotechnology, Maejo University Phrae Campus, Phrae
  • Yaowapha Pukkarawake Department of Biotechnology, Maejo University Phrae Campus, Phrae

Keywords:

carotenoid, Rhodotorula rubra MJU11, Lactobacillus acidophilus KK-03, fish meal, probiotic

Abstract

This study aims to determine the optimum conditions for the production of carotenoids from Rhodotorula rubra MJU11 after fermentation of fish meal in combination with Lactobacillus acidophilus KK−03 to eliminate contaminated microorganisms in fish meal. The conditions examined were optimal timing, humidity, carbon source, and nitrogen source for R. rubra MJU11 growth. The result showed that at 48 hours, R. rubra MJU11 had the highest growth with 2.3198 grams dry cell weight and carotenoids content was 14.8987 g/g dry weight. Optimal moisture content was 40 percent and found that fish meal already contained sufficient nutrients for the yeast, thus eliminating the need for additional carbon and nitrogen sources. It was also found that fermentation of fish meal by using L. acidophilus KK−03 reduced the microbial contamination in fish meal. From the research results, it can be developed into animal feed formulas to add value to animal feed products at the feed industry level further.

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Published

2023-12-19

How to Cite

Naragunta, N. ., Chanchay, N. ., & Pukkarawake, Y. . (2023). Optimal Conditions for Carotenoids Production by Rhodotorula rubra MJU11 in Combination with Lactobacillus acidophilus KK−03 in Fish Meal. Journal of Agricultural Research and Extension, 40(3), 75–84. retrieved from https://li01.tci-thaijo.org/index.php/MJUJN/article/view/248113