食品科学2024，Vol.45Issue(24)：69-80,12.DOI:10.7506/spkx1002-6630-20240528-239
臭氧预处理与月桂酸复合改性对香蕉淀粉结构和性质的影响
Effects of Ozone Pretreatment and Lauric Acid Modification on the Structure and Properties of Banana Starch
从小飞 1郑丽丽 2郑晓燕 2校导 2艾斌凌 2杨旸 2盛占武 2杨劲松1
作者信息
- 1. 海南大学食品科学与工程学院,海南 海口 570228
- 2. 中国热带农业科学院农产品加工研究所,广东 湛江 524001
- 折叠
摘要
Abstract
In order to investigate the impact of ozone pretreatment and lipid modification on the structure and properties of starch,ozone-pretreated banana starch-lauric acid complexes were prepared and their physicochemical properties and digestibility were evaluated.Results showed that in comparison with the native starch,the complexation index(CI)of the pretreated starch with lauric acid increased by 12.67%;the resulting complexes exhibited a significant increase in water solubility,swelling power and syneresis,an elevation in gelatinization temperature from 104.24-135.23℃to 155.60-161.68℃,and a 6.71%increase in resistant starch,but a decrease in iodine binding capacity.Scanning electron microscopy(SEM)and atomic force microscopy(AFM)demonstrated that lauric acid was bound to the surface of starch granules to form a complex,thereby increasing the surface height of starch granules.Fourier transform infrared spectroscopy(FTIR)and X-ray diffraction(XRD)revealed that banana starch and lauric acid formed non-V-type and V-type complexes through hydrogen bonding and hydrophobic interactions.The results of contact angle and thermogravimetric(TG)analysis demonstrated that the hydrophobic properties and thermal stability of the complexes were improved.Consequently,the combination of ozone pretreatment and lauric acid modification could enhance the water solubility,swelling capacity,and thermal stability of banana starch,further improving its digestibility resistance.These findings will expand the application potential of starch in the food field.关键词
臭氧/香蕉淀粉/月桂酸Key words
ozone/banana starch/lauric acid分类
轻工纺织引用本文复制引用
从小飞,郑丽丽,郑晓燕,校导,艾斌凌,杨旸,盛占武,杨劲松..臭氧预处理与月桂酸复合改性对香蕉淀粉结构和性质的影响[J].食品科学,2024,45(24):69-80,12.
