Identification of a Fungal Strain F10 Producing Blue Pigment and Properties of the Pigment

doi:10.7506/spkx1002-6630-201712017

Abstract

Abstract: A fungal strain producing blue pigment, named F10, was isolated from a wild pine in southern Jiangxi, and it was identified as a member of the genus Pseudofusicoccum in the family Botryosphaeria by using ITS rDNA sequence homology comparison as well as morphological traits. We studied the stability of blue pigment when exposed to different solvents, pH values, temperatures illumination intensities, metal ions, oxidizers and reductants. The data showed that the pigment was sensitive to pH, metal ions, and reductants but not light, temperature or oxidants. We speculated that pH, metal ions, and reductants might change the structure of the pigment. Analysis of the basic chemical structure by high performance liquid chromatography-mass spectrometry (HPLC-MS) and infrared spectroscopy (IR) revealed that the pigment was aromatic carboxylic acid compounds.

Key words: the genus Pseudofusicoccum in the family Botryosphaeria, blue pigment, properties

CLC Number:

Q815

ZHAO Lifang, MA Cuiyun, LUO Hailan, WANG Fei,. Identification of a Fungal Strain F10 Producing Blue Pigment and Properties of the Pigment[J]. FOOD SCIENCE, 2017, 38(12): 112-118.

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Identification of a Fungal Strain F10 Producing Blue Pigment and Properties of the Pigment

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