Improving nisin production by encapsulated Lactococcus lactis with starch/carboxymethyl cellulose edible films

被引：48

作者：

Lan, Wenting ^{[1
]}

Zhang, Rong ^{[1
]}

Ji, Tengteng ^{[1
]}

Sameen, Dur E. ^{[1
]}

Ahmed, Saeed ^{[1
]}

Qin, Wen ^{[1
]}

Dai, Jianwu ^{[2
]}

He, Li ^{[1
]}

Liu, Yaowen ^{[1
,3
]}

机构：

[1] Sichuan Agr Univ, Coll Food Sci, Yaan 625014, Peoples R China

[2] Sichuan Agr Univ, Coll Mech & Elect Engn, Yaan 625014, Peoples R China

[3] Univ Calif Los Angeles, Calif Nano Syst Inst, Los Angeles, CA 90095 USA

来源：

CARBOHYDRATE POLYMERS | 2021年 / 251卷

基金：

中国国家自然科学基金;

关键词：

Starch; Carboxymethyl cellulose; Lactococcus lactis; Edible film; PHYSICAL-PROPERTIES; PHYSICOCHEMICAL PROPERTIES; ACID BACTERIA; WHEY-PROTEIN; CORN STARCH; SURVIVAL; TEMPERATURE; VIABILITY; ALGINATE; COATINGS;

D O I：

10.1016/j.carbpol.2020.117062

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In this study, Lactococcus lactis was embedded in a film of corn starch (NS) and carboxymethyl cellulose (CMC) prepared using a casting method. At a CMC:NS ratio of 5:5, the composite film had the best comprehensive properties. Scanning electron microscopy images clearly showed that L. lactis was effectively embedded. The film with 1.5 % L. lactis showed the best performance and the lowest water vapor transmission rate (5.54 x 10(-11) g/m s Pa. In addition, the edible film retained a viable count of 5.64 log CFU/g of L. lactis when stored at 4 degrees C for 30 days. The composite film with 1.5 % L. lactis showed the highest release of nisin (3.35 mg/mL) and good antibacterial activity against Staphylococcus aureus (53.53 %) after 8 days. Therefore, this edible film is a viable alternative antimicrobial strategy for the active packaging of foods containing low moisture content.

引用

页数：11

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