NDLI: Fermentation and quality of yellow pigments from golden brown rice solid culture by a selected Monascus mutant

Content Provider	Springer Nature Link
Author	Yongsmith, Busaba Thongpradis, Panida Klinsupa, Worawan Chantrapornchai, Withida Haruthaithanasan, Vichai
Copyright Year	2013
Abstract	A single peak (λmax 370) yellow pigment-producing mutant derived from Monascus sp. TISTR 3179 was used for the pigment production in solid rice culture. Various factors affecting yellow tones were investigated. Hom-mali rice variety was the best amongst five Thai local varieties used for fungus culture. It was also better than corn, mungbean, soybean, potato, sweet potato, or cassava tubers. The moisture content and temperature were the key environmental factors affecting the color tones of creamy, tangerine, and golden brown rice solid cultures. The golden brown rice culture gave the highest yellow pigment concentration. Under an optimum room temperature of 28–32 °C, an initial moisture content of 42 %, and 7-day-old inoculum size of 2 % (v/w) the maximum yield at 2,224.63 A370U/gdw of yellow pigment was produced. A mellow yellow powder at 550 A370U/gdw could be obtained using spray-drying techniques. The powder had a moisture content of 5.15 %, a water activity value of 0.398, a hue angle of 73.70 ° (yellowish orange), high lightness (L) of 74.63, color saturation (C) of 28.97, a neutral pH of 7.42, 0.12 % acidity and solubility of 0.211 g/10 ml. It was noteworthy that the Chinese fresh noodle with spray-dried yellow powder showed no discoloration during 8-day storage.
Starting Page	8895
Ending Page	8902
Page Count	8
File Format	PDF
ISSN	01757598
Journal	Applied Microbiology and Biotechnology
Volume Number	97
Issue Number	20
e-ISSN	14320614
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-08-04
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	Monascus mutant Yellow pigment Golden brown yeast rice Solid culture Microbiology Microbial Genetics and Genomics Biotechnology
Content Type	Text
Resource Type	Article
Subject	Medicine Applied Microbiology and Biotechnology Biotechnology

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