고압균질처리가 전분필름의 물성에 미치는 영향

강은정¹, 이재권¹^,^*

Effects of High Pressure Homogenization on Physicochemical Properties of Starch Films

Eun-Jung Kang¹, Jae-Kwon Lee¹^,^*

¹경기대학교 식품생물공학과

¹Department of Food Science and Biotechnology, Kyonggi University

^*Corresponding author: Jae-Kwon Lee, Department. of Food Science and Biotechnology, College of Natural Science, Kyonggi University, San 94-6, Iui-dong, Yeongtong-gu, Suwon-si, Gyeonggi-do, 443-760, Korea, Tel: +82-31-249-9654; Fax: +82-31-249-9650, E-mail: jglee@kyonggi.ac.kr

ⓒ Copyright 2011 Korean Society for Food Engineering. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Received: Nov 09, 2010; Revised: Feb 11, 2011; Accepted: Feb 22, 2011

Published Online: Feb 28, 2011

Abatract

The effects of high pressure homogenization (microfluidization) on physicochemical properties of normal maize and oxidized maize starch film were studied. The molecular dispersibility of amlyose and amylopectin and the disintegration of granular structure had a marked effect on the physicochemical properties of starch films. The high pressure homogenized starch films showed increased solubility and transmittance due to the absence of gelatinized starch granules. The tensile strength of starch film increased significantly with decreasing oxygen permeability after high pressure homogenization, indicating that starch molecules were more uniformly and fully dispersed during the film formation. As a result, a clear starch film with improved mechanical properties was obtained after high pressure homogenization due to the increased interactions between the uniformly dispersed starch molecules.

Keywords: starch films; microfluidizer; high pressure homogenization; film properties