Effect of Rice Bran Addition on Physical Properties of Antimicrobial Biocomposite Films Based on Starch

被引:25
作者
Berti, Sofia [1 ,2 ]
Jagus, Rosa J. [1 ,2 ]
Flores, Silvia K. [3 ,4 ]
机构
[1] Univ Buenos Aires, Fac Ingn, Dept Ingn Quim, Intendente Guiraldes 2620, RA-1428 Buenos Aires, DF, Argentina
[2] Univ Buenos Aires, CONICET, Inst Tecnol & Ciencias Ingn INTECIN, Buenos Aires, DF, Argentina
[3] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Ind, Intendente Guiraldes 2620, RA-1428 Buenos Aires, DF, Argentina
[4] Univ Buenos Aires, CONICET, Inst Tecnol Alimentos & Proc Quim ITAPROQ, Buenos Aires, DF, Argentina
关键词
Rice bran; Starch-based edible film; Physicochemical characterization; Natamycin and nisin; Antimicrobial performance; EDIBLE FILMS; BARRIER PROPERTIES; CORN STARCH; NISIN; COMPOSITES; RETROGRADATION; PREDICTION; NATAMYCIN; COATINGS; TENSILE;
D O I
10.1007/s11947-021-02669-0
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
The increase in consumer requirements for safe and high-quality food has promoted the development of active and edible packaging materials based on biopolymers. In this study, composite tapioca starch films by addition of processed rice bran (PRB) microparticles, containing or not the natural antimicrobials natamycin and nisin, were studied in relation to their physicochemical properties and antimicrobial activity. It was observed that the presence of PRB addition (0.1-0.3% w/w) increased yellowness proportionally to fiber content in films with or without antimicrobials but did not influence on thickness and water vapor permeability. Films with 0.2% PRB allowed the highest increase of tensile strength and strain at break and reduced the solubility in water, showing the optimal compatibility between PRB and starch matrix containing or not antimicrobials. Analysis by FTIR also suggested a good compatibility between filler and matrix through hydrophilic groups. Additionally, the analyzed composite films allowed the diffusion of the natural preservatives verified through zones of inhibition formed in the halo test against Saccharomyces cerevisiae and Listeria innocua. Consequently, the developed biocomposites can be used as an active packaging for food preservation.
引用
收藏
页码:1700 / 1711
页数:12
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