Cellulose acetate active films incorporated with oregano (Origanum vulgare) essential oil and organophilic montmorillonite clay control the growth of phytopathogenic fungi

被引：98

作者：

Pola, Cicero C. ^{[1
]}

Medeiros, Eber A. A. ^{[1
]}

Pereira, Olinto L. ^{[2
]}

Souza, Victor G. L. ^{[1
,3
]}

Otoni, Caio G. ^{[1
,4
,5
]}

Camilloto, Geany P. ^{[1
,6
]}

Soares, Nilda F. F. ^{[1
]}

机构：

[1] Univ Fed Vicosa, Dept Food Technol, Lab Food Packaging, Ave PH Rolfs S-N, BR-36570900 Vicosa, MG, Brazil

[2] Univ Fed Vicosa, Dept Phytopathol, Ave PH Rolfs S-N, BR-36570900 Vicosa, MG, Brazil

[3] Univ Nova Lisboa, Fac Sci & Technol, Dept Sci & Technol Biomass, Campus Caparica, P-2829516 Caparica, Portugal

[4] Univ Fed Sao Carlos, Dept Mat Engn, PPG CEM, Rod Washington Luis,Km 235, BR-13565905 Sao Carlos, SP, Brazil

[5] Embrapa Instrumentat, Natl Nanotechnol Lab Agribusiness, Rua 15 Novembro 1452, BR-13560970 Sao Carlos, SP, Brazil

[6] State Univ Feira de Santana, Dept Technol, Ave Transnordestina S-N, BR-44036900 Feira De Santana, BA, Brazil

来源：

FOOD PACKAGING AND SHELF LIFE | 2016年 / 9卷

基金：

巴西圣保罗研究基金会;

关键词：

Active packaging; Biopolymer; Nanocomposite; Antimicrobial film; Antifungal activity; ANTIMICROBIAL PROPERTIES; NANOCOMPOSITE FILMS; ANTIBACTERIAL PROPERTIES; MECHANICAL-PROPERTIES; BARRIER PROPERTIES; EDIBLE FILMS; VAPOR-PHASE; BIOCOMPOSITES; STABILITY; BUTYRATE;

D O I：

10.1016/j.fpsl.2016.07.001

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

The aim of the present study was to produce active films based on cellulose acetate (CAc) incorporated with different concentrations of oregano essential oil (OEO) and organophilic montmorillonite clay (MMT30B) to control the growth of phytopathogenic fungi. The active films were characterized by ATR-FTIR, XRD, TEM, mechanical resistance, WVTR, OTR, thermal stability, and antifungal activity against the phytopatogens Alternaria alternata, Geotrichum candidum, and Rhizopus stolonifer. The CAc-based active films presented high antifungal activity against the tested phytopathogens, mainly in vapor phase. MMT30B exhibit good dispersion in CAc matrix, resulting in a partially exfoliated conformation. In this way, MMT30B significantly increased films' rigidity and thermal resistance while reduced OTR. OEO acted as plasticizer, facilitating MMT30B dispersion. Also, OEO increased extensibility and decreased WVTR of CAc-based films. Both OEO and MMT30B slightly improved the thermal resistance of films. The active films developed here denote a potential packaging system for postharvest conservation purposes. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：69 / 78

页数：10

共 66 条

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