EVALUATION OF ANTI-FUNGAL ACTIVITY OF CHITOSAN AND ITS EFFECT ON THE MOISTURE ABSORPTION AND ORGANOLEPTIC CHARACTERISTICS OF PISTACHIO NUTS

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MAGHSOUDLOU A.; MAGHSOUDLOU Y.; KHOMEIRI M.; GHORBANI M.

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Journal: Research and Innovation in Food Science and Technology Year:2012 | Volume:1 | Issue:2 Page(s): 87-98

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Title

EVALUATION OF ANTI-FUNGAL ACTIVITY OF CHITOSAN AND ITS EFFECT ON THE MOISTURE ABSORPTION AND ORGANOLEPTIC CHARACTERISTICS OF PISTACHIO NUTS

Author(s)

MAGHSOUDLOU A. | MAGHSOUDLOU Y. | KHOMEIRI M. | GHORBANI M. | Issue Writer Certificate

Keywords

ANTIFUNGAL ACTIVITYQ2

CHITOSANQ2

MOISTURE ABSORPTIONQ3

ORGANOLEPTIC CHARACTERISTICSQ2

PISTACHIOQ2

Abstract

Iran is one of the largest PISTACHIO producers and exporter in the world. In case of improper storage the PISTACHIO quality will drop down for proliferation of fungus and absorption of moist which causes tissue destruction, undesirable flavour in the product. The aim of this study is examination of anti-fungal activity of CHITOSAN and its impact on the ORGANOLEPTIC CHARACTERISTICS of PISTACHIO nuts. Therefore, we coated the PISTACHIOs with acetic acid of 1% V/V, CHITOSAN in a concentration of 0.5%, 1% and 1.5% V/W. Acetic acid of 1% was used for coating to determine its antimicrobial effect on the PISTACHIO. The coated PISTACHIOs were packed in polyethylene made bags and kept in a room with temperature (25-27oC) for a six month period. During the storage, samples were examined every other week for total mold and yeast count, percent of Aspergillus development, moisture content and weight fluctuation and sensory evaluation. Experiments were performed in a factorial form in a completely randomized design. The results showed that CHITOSAN significantly (p<0.05) inhibit the growth of the Aspergillus and increasing CHITOSAN concentration, increases its anti-fungal activity. CHITOSAN also prevents MOISTURE ABSORPTION and weight fluctuation in PISTACHIO nuts, but concentration of CHITOSAN had no significant effect in this area. CHITOSAN at 1.5% concentration, had a significant effect (p<0.05) on the flavour of PISTACHIO, but other concentrations had no effect on the flavour of PISTACHIO. CHITOSAN also had no significant effect on the PISTACHIO colour, texture and its general admission (p>0.05). Finally, CHITOSAN solution at 1% concentration was selected as the best treatment.

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APA: Copy

MAGHSOUDLOU, A., MAGHSOUDLOU, Y., KHOMEIRI, M., & GHORBANI, M.. (2012). EVALUATION OF ANTI-FUNGAL ACTIVITY OF CHITOSAN AND ITS EFFECT ON THE MOISTURE ABSORPTION AND ORGANOLEPTIC CHARACTERISTICS OF PISTACHIO NUTS. JOURNAL OF RESEARCH AND INNOVATION IN FOOD SCIENCE AND TECHNOLOGY, 1(2), 87-98. SID. https://sid.ir/paper/233908/en

Vancouver: Copy

MAGHSOUDLOU A., MAGHSOUDLOU Y., KHOMEIRI M., GHORBANI M.. EVALUATION OF ANTI-FUNGAL ACTIVITY OF CHITOSAN AND ITS EFFECT ON THE MOISTURE ABSORPTION AND ORGANOLEPTIC CHARACTERISTICS OF PISTACHIO NUTS. JOURNAL OF RESEARCH AND INNOVATION IN FOOD SCIENCE AND TECHNOLOGY[Internet]. 2012;1(2):87-98. Available from: https://sid.ir/paper/233908/en

IEEE: Copy

A. MAGHSOUDLOU, Y. MAGHSOUDLOU, M. KHOMEIRI, and M. GHORBANI, “EVALUATION OF ANTI-FUNGAL ACTIVITY OF CHITOSAN AND ITS EFFECT ON THE MOISTURE ABSORPTION AND ORGANOLEPTIC CHARACTERISTICS OF PISTACHIO NUTS,” JOURNAL OF RESEARCH AND INNOVATION IN FOOD SCIENCE AND TECHNOLOGY, vol. 1, no. 2, pp. 87–98, 2012, [Online]. Available: https://sid.ir/paper/233908/en

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