Phytic Acid Extracted from Rice Bran as a Growth Promoter for Euglena gracilis

Author:

Zhu Jiangyu1,Hong Dang Diem2,Wakisaka Minato1

Affiliation:

1. Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Kitakyushu, Japan

2. Department of Algal Biotechnology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam

Abstract

AbstractA significant promotion of growth and accumulation of metabolites of freshwater microalga Euglena gracilis was obtained by adding phytic acid to the culture. Phytic acid concentration of 0.05% (v/v) showed a maximum biomass increase of 1.6-fold compared to the control group. Synchronous variation in the content and proportion of photosynthetic pigments was also observed. The total chlorophyll content increased with phytic acid concentration, suggesting the enhanced capacity of absorbing light. Cell length, an important biomarker for E. gracilis, was prolonged to a certain extent under light condition, indicating the state of the cells was more active. Since phytic acid is derived from agro waste of rice bran, it is promising as a low-cost but high-efficient growth promoter of E. gracilis.

Publisher

Walter de Gruyter GmbH

Subject

Materials Chemistry,General Chemistry

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