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Development of new active nanocomposite packaging films containing polyhedral oligomeric silsesquioxane for walnut (Juglans regia L.) kernel packaging
Packaging Technology and Science ( IF 2.6 ) Pub Date : 2020-12-02 , DOI: 10.1002/pts.2548
Hatice Kavuncuoglu 1 , Hasan Yalcin 1 , Mehmet Dogan 2
Affiliation  

Active nanocomposite films made from low‐density polyethylene (LDPE) and polyhedral oligomeric silsesquioxane (POSS) were prepared as of food packaging material for walnut kernels (Juglans regia L.) oil protection against lipid oxidation. N‐Phenylaminopropyl‐POSS (NP‐POSS), octaammonium‐POSS (QA‐POSS) and methacryl‐POSS (M‐POSS) were utilized as convenient additives. Intact and crushed walnut kernels were stored in conditions set to accelerate oxidation (24 h of light, 38°C, and 33% RH). On the 14th day, peroxide value (PV) was determined as 14.13 meq O2/kg in intact walnut kernel oil (WKO), whereas the PV of walnuts was measured as 5.94 meq O2/kg and 7.95 meq O2/kg wrapped with 5 wt% NP‐POSS and 3 wt% QA‐POSS containing the film, respectively. At the end of the storage, K232 values were measured as 4.42 and 6.12 packaged with control films, whereas K232 values ranged 2.72 and 3.14 in samples packaged with 5 wt% NP‐POSS. Similarly, K232 value of WKO wrapped with QA‐POSS containing films was detected as 2.89 and 3.20 in intact and crushed walnut samples, respectively. The p‐anisidine value of WKO wrapped with pure LDPE reached 4.86 and 7.33 for WKO obtained from the intact and crushed walnut kernel, and the lowest p‐anisidine values observed intact (2.07) and crushed (3.84) samples of packaged with 5 wt% NP‐POSS, respectively. The results have shown that novel nanocomposite food packaging films, including NP‐POSS and QA‐POSS, for vacuum‐packed walnut kernels are sufficient to protect against oxidation.

中文翻译:

开发用于核桃仁的多面体低聚倍半硅氧烷的新型活性纳米复合包装薄膜

制备了由低密度聚乙烯(LDPE)和多面体低聚倍半硅氧烷(POSS)制成的活性纳米复合薄膜,作为核桃仁(Juglans regia L。)防油脂氧化食品包装材料。N-苯基氨基丙基-POSS(NP-POSS),八铵-POSS(QA-POSS)和甲基丙烯酸-POSS(M-POSS)被用作方便的添加剂。将完整和压碎的核桃仁储存在加速氧化的条件下(24小时光照,38°C和33%RH)。在第14天,测定完整核桃仁油(WKO)中的过氧化物值(PV)为14.13 meq O 2 / kg,而核桃的PV测定为5.94 meq O 2 / kg和7.95 meq O 2/ kg分别用含薄膜的5 wt%NP-POSS和3 wt%QA-POSS包裹。在存储结束时,测量的K 232值为4.42和6.12,与对照膜包装在一起,而在包装5 wt%NP-POSS的样品中,K 232值为2.72和3.14。同样,在完整和压碎的核桃样品中,包裹有含QA-POSS薄膜的WKO的K 232值分别为2.89和3.20。从完整和压碎的核桃仁中获得的WKO,用纯LDPE包裹的WKO的p-茴香胺值分别达到4.86和7.33,最低p用5 wt%NP-POSS包装的完整样品中的茴香胺值(2.07)和压碎(3.84)。结果表明,用于真空包装核桃仁的新型纳米复合食品包装膜,包括NP-POSS和QA-POSS,足以防止氧化。
更新日期:2021-01-29
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