Metabolic engineering probiotic yeast produces 3S, 3′S-astaxanthin to inhibit B16F10 metastasis

Chung Chih Tseng, Yu Ju Lin, Wangta Liu, Hao Yeh Lin, Hsin Yu Chou, Caroline Thia, Jou Hsien Wu, Jo Shu Chang, Zhi Hong Wen, Jui Jen Chang, Hui Min David Wang

研究成果: Article同行評審

17 引文 斯高帕斯(Scopus)


3S, 3′S-Astaxanthin is the most powerful antioxidant to scavenge free radicals in the world. In this study, a 3S, 3′S-astaxanthin biosynthesis pathway was constructed in a probiotic yeast, Kluveromyces marxianus, denoted YEAST, and its bioactive metabolites were extracted for biofunctional assessments. The bio-safety examination was achieved by two animal models as following: First, no significant toxic effects on YEAST groups were found in zebrafish; Second, after feeding YEAST for 4 weeks, the rat-groups showed no visible abnormality, and no significant change of the body weight and blood biochemistry tests. The inhibition of lung metastasis of melanoma cells and the increment of the survival rate were demonstrated by feeding YEAST and injecting the intravenous commercial astaxanthin in vivo rodent model. Based on in vitro assays of 1,1-diphenyl-2-picryl-hydrazyl (DPPH) scavenging analysis, ferrous ion chelating ability, reducing power assessment, and mushroom tyrosinase inhibition evaluation, YEAST-astaxanthin showed anti-oxidative and tyrosinase suppressive properties. Taken together, the 3S, 3′S-astaxanthin producing probiotic yeast is safe to be used in the bio-synthesis of functional and pharmaceutical compounds, which have broad industrial applications on cosmetic, food and feed additive and healthcare.

期刊Food and Chemical Toxicology
出版狀態Published - 2020 1月

All Science Journal Classification (ASJC) codes

  • 食品科學
  • 毒理學


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