CIHEAM Bari - Mediterranean Agronomic Institute of Bari, 9 Via Ceglie, Valenzano, BA 70010, Italy.
Food Chem. 2018 Sep 1;259:251-260. doi: 10.1016/j.foodchem.2018.03.137. Epub 2018 Mar 30.
In this study, bio-based emitting sachets containing eugenol (EUG), carvacrol (CAR) and trans-anethole (ANT) were inserted into cellulose (CE) and polypropylene (PP) pillow packages of organic ready-to-eat (RTE) iceberg lettuce to investigate their functional features. EUG, CAR and ANT sachets in CE; and CAR in PP packages showed antimicrobial activities against coliforms (Δlog CFU g of -1.38, -0.91, -0.93 and -0.93, respectively). EUG and ANT sachets in both packages reduced discoloration (ΔE of 9.5, 1.8, 9.4 and 5.6, respectively). ANT in both, and EUG only in PP packages induced biosynthesis of caffeoyl derivatives (CT, DCT, DCQ), total phenolics and antioxidant activity (FRAP). Also, ANT and EUG in both packages improved overall freshness and odor. Principal component analysis separated ANT and EUG from CAR in both packages. The Pearson correlation confirmed that overall quality improvements were more pronounced by ANT inside the packages in comparison to EUG and CAR.
在这项研究中，将含有丁香酚 (EUG)、香芹酚 (CAR) 和反式茴香脑 (ANT) 的生物基散发香囊插入到纤维素 (CE) 和聚丙烯 (PP) 的有机即食冰生菜枕式包装中，以研究其功能特性。CE 中的 EUG、CAR 和 ANT 香囊；以及 PP 包装中的 CAR 对大肠菌群表现出抗菌活性（Δlog CFU g 分别为-1.38、-0.91、-0.93 和-0.93）。EUG 和 ANT 香囊在两个包装中均减少了变色（ΔE 分别为 9.5、1.8、9.4 和 5.6）。两个包装中的 ANT 和仅在 PP 包装中的 EUG 诱导了咖啡酰衍生物 (CT、DCT、DCQ)、总酚和抗氧化活性 (FRAP) 的生物合成。此外，两个包装中的 ANT 和 EUG 均改善了整体新鲜度和气味。主成分分析将 ANT 和 EUG 与两个包装中的 CAR 区分开来。Pearson 相关性证实，与 CAR 和 EUG 相比，ANT 在内包装中的整体质量改善更为明显。
