Characterisation and evaluation of PLA films containing an extract of Allium spp. to be used in the packaging of ready-to-eat salads under controlled atmospheres

被引：64

作者：

Llana-Ruiz-Cabello, M. ^{[1
]}

Pichardo, S. ^{[1
]}

Banos, A. ^{[2
]}

Nunez, C. ^{[2
]}

Bermudez, J. M. ^{[3
]}

Guillamon, E. ^{[2
]}

Aucejo, S. ^{[3
]}

Camean, A. M. ^{[1
]}

机构：

[1] Univ Seville, Fac Pharm, Area Toxicol, E-41012 Seville, Spain

[2] DOMCA SA, Granada 18620, Spain

[3] ITENE, Area Packaging Mat & Syst, Valencia 46980, Spain

来源：

LWT-FOOD SCIENCE AND TECHNOLOGY | 2015年 / 64卷 / 02期

关键词：

Allium; Polylactic acid; Antimicrobial; Active packaging; Controlled atmosphere; ESSENTIAL OILS; ANTIMICROBIAL ACTIVITY; POLY(LACTIC ACID); SHELF-LIFE; ANTIOXIDANT; ANTIBACTERIAL; CARVACROL; CHITOSAN; THYMOL; CLOVE;

D O I：

10.1016/j.lwt.2015.07.057

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

New food packaging systems are been developed by food industry. The present work proposes the use of polylactic acid (PLA) containing different percentages of an Allium spp. extract (2%, 5%, and 6.5% Proalium (R)) to be used in the packaging of ready-to-eat salads. Mechanical and optical properties of PLA films studied did not show remarkable changes when the active substance was incorporated. Additionally, no significant antioxidant activity was observed, although remarkable antimicrobial activity was recorded, mainly in films containing 5% and 6.5% of the Allium spp. extract. Moreover, the antimicrobial effect in vivo was observed in lettuce. All developed films decreased enterobacterial growth in a concentration-dependent manner. Regarding aerobic bacteria, film with the highest concentration of active agent (6.5%) was found to be effective up to 5 days of storage, and even 7 days for moulds. Therefore, the PIA-Proalliume (R) film could be a promising antimicrobial active material, especially for ready-to-eat salads. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：1354 / 1361

页数：8

共 35 条

[1] Physico-mechanical and antimicrobial properties of gelatin film from the skin of unicorn leatherjacket incorporated with essential oils [J].