Antihyperglycemic Activity of Exopolysaccharide Produced by Mushroom Pleurotus ferulae with Submerged Liquid Culture on Streptozotocin-induced Diabetic Rats

Jinnchyi Wang¹, Chihchung Wu², Yukuei Chen³, Chenyu Chen⁴, Shuhui Hu^5, and Suejoan Chang^6,

¹Department of Food Science and Technology, Tajen University, 20, Weishin Rd., Shinerh Village, Yenpu Shiang, Pingtung, Taiwan

²Department of Nutrition and Health Sciences, Chang Jung Christian University, 396, Sec. 1, Changrong Rd., Gueiren Dist., Tainan, Taiwan

³Department of Food Science and Nutrition, Mei Ho University, 23, Pingguang Rd., Neipu Shiang, Pingtung, Taiwan

⁴Innovative Digi Tech-Enabled Applications & Services Institute, Institute for Information Industry, 3F-3, No 2, Fuxin 4th Rd., Kaohsiung, Taiwan

⁵Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, 100, Shihchuan 1st Road, Kaohsiung, Taiwan

⁶Department of Life Sciences, National Cheng Kung University, No. 1, University Rd., Tainan, Taiwan

Cite this paper:
Jinnchyi Wang, Chihchung Wu, Yukuei Chen, Chenyu Chen, Shuhui Hu and Suejoan Chang. Antihyperglycemic Activity of Exopolysaccharide Produced by Mushroom Pleurotus ferulae with Submerged Liquid Culture on Streptozotocin-induced Diabetic Rats. Journal of Food and Nutrition Research. 2014; 2(7):419-424. doi: 10.12691/jfnr-2-7-15

Abstract

The production of many edible and medicinal mushrooms has been steadily increasing, because of several of their physiological effects. In the present study, we investigated the antihyperglycemic activity of large exopolysaccharide molecules (PSF), which are produced in the fermented broth of ferula mushroom Pleurotus ferulae, on streptozotocin-induced diabetic rats. All experimental rats were divided into 6 groups consist of 8 rats. The diabetic rats were fed a diet containing PSF for 6 weeks at a dose of 30 mg (PSFL-group), 90 mg (PSFM-group), or 250 mg/kg body weight (PSFH-group) daily, respectively. The fasting blood glucose level of the PSFH-group was the lowest among all 3 PSF-fed groups. Insulin levels increased and HbA1c levels decreased significantly for the three PSF-fed groups in comparison with negative control group during period of breeding. The PSFH-group’s low-density lipoprotein cholesterol and triglyceride levels were lower than those of other groups. A dose-dependent effect revealed that the exopolysaccharide of P. ferulae might mitigate hyperglycemia at the highest dose of 250 mg/kg body weight.

Keywords:
exopolysaccharide Pleurotus ferulae antihyperglycemic activity submerged culture streptozotocin-induced diabetic rats

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