RESUMEN
OBJECTIVE:To study the stability of Aloe gel under conditions of high and low temperature, high humidity and high light and to predicate its validity duration stored under room temperature. METHODS: The content of Polysaccharide in the gel was determined by phenol-sulfuric acid method. Aloe gel was put under the conditions of high temperature, low temperature, high-relative humidity, and high light to investigate the changes in appearance, pH and content. The expiry term of Aloe gel was predicted by initial average rate method. RESULTS: The content was highly correlated to temperature, but it had little correlation with light and humidity. The validity duration for Aloe gel at room temperature (25 ℃) is expected to be 1 year. CONCLUSION: Aloe gel should be cool-stored under room temperature.