Results of a 90-day safety assessment study in mice fed a glucan produced by Agrobacterium sp. ZX09.

Abstract

Salecan is a novel water-soluble glucan produced by Agrobacterium sp. ZX09. It has potential application as a food additive with a unique chemical composition and excellent physicochemical properties. The objective of this study was to investigate the acute and subchronic toxicity of Salecan. The oral LD50 of Salecan in ICR mice was greater than 3000 mg/kg body weight. In the subchronic study, ICR mice (10/sex/group) were fed diets containing 0%, 1.0%, 2.5% and 5.0% of Salecan (weight/weight) for 13 weeks. Based on the results from the subchronic study, the overall health, body weight gain, food consumption and clinical pathology parameters were comparable between the groups feed Salecan and the control. No dose-related effects were observed in the treated animals. The only exception was the observation that blood glucose in female mice fed Salecan was lower than in the control group. In addition, the fecal matter from Salecan fed mice exhibited increased water content versus the control animals. The no observed adverse effect level (NOAEL) of 14478 mg/kg body weight/day was determined. The results from this study support the conclusion that Salecan is non-toxic at the levels tested and does not pose a risk to human health when used in food.

• Authors: Aihui Xiu, Yibei Zhan, Mengyi Zhou, Bin Zhu, Shiming Wang, Aiqun Jia, Wei Dong, Chun Cai, Jianfa Zhang
• Journal: Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association (Food Chem Toxicol) Vol. 49 Issue 9 Pg. 2377-84 (Sep 2011) ISSN: 1873-6351 [Electronic] England
• PMID: 21723362 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Copyright © 2011 Elsevier Ltd. All rights reserved.

Chemical References

• Glucans

Topics

• Agrobacterium (metabolism)
• Animals
• Body Weight (drug effects)
• Feces
• Female
• Glucans (administration & dosage, adverse effects)
• Male
• Mice
• No-Observed-Adverse-Effect Level