Ethylene scavenging properties from hydroxypropyl methylcellulose-TiO2 and gelatin-TiO2 nanocomposites on polyethylene supports for fruit application

明胶 乙烯 化学工程 纳米复合材料 材料科学 聚乙烯 光催化 涂层 采后 降级(电信) 化学 复合材料 有机化学 催化作用 植物 工程类 生物 电信 计算机科学
作者
Jéssica de Matos Fonseca,Nelson Yurako Londoño Pabón,Germán Ayala Valencia,Leandro G. Nandi,Marta Elisa Rosso Dotto,Regina de Fátima Peralta Muniz Moreira,Alcilene Rodrigues Monteiro
出处
期刊:International Journal of Biological Macromolecules [Elsevier BV]
卷期号:178: 154-169 被引量:14
标识
DOI:10.1016/j.ijbiomac.2021.02.160
摘要

Several technologies have been proposed to preserve fruits and to avoid postharvest losses. The degradation of ethylene produced by the fruits using TiO2 photocatalysis has shown to be a good option to delay the ripening of fruits. This paper proposed a new application of biopolymers-TiO2 nanocomposites developed to extend the shelf-life of fruits. Photocatalytic coatings were applied on the expanded polyethylene foam nets to degrade ethylene. Gelatin and hydroxypropyl methylcellulose (HMPC) were tested as hydrophobic and hydrophilic matrices for the TiO2 incorporation. First, nanocomposite films prepared by casting were evaluated with regards to their photocatalytic properties. Both matrices, which were loaded with 1 wt% TiO2, degraded 40% of the ethylene injected in a batch reactor. By Langmuir-Hinshelwood model, ethylene degradation using gelatin-TiO2 films (kapp = 0.186 ± 0.021 min−1) was faster than the HPMC-TiO2 films (kapp = 0.034 ± 0.003 min−1). Then, gelatin-TiO2 dispersion was applied as a coating on the foam nets by dip coating. The gelatin-TiO2 bilayer exhibited higher concentration of ethylene degraded per photocatalytic area and photocatalyst mass unit (13.297 ± 0.178 ppmv m2 gTiO2−1) than its film form (18.212 ± 1.157 ppmv m2 gTiO2−1), which makes gelatin-TiO2/foam nets a promising composite design for fruit postharvest application.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
无与伦比发布了新的文献求助30
3秒前
5秒前
一人独钓一江秋完成签到,获得积分10
5秒前
7秒前
8秒前
干雅柏发布了新的文献求助10
10秒前
搜集达人应助俏皮芷蕊采纳,获得10
12秒前
上官若男应助sugar采纳,获得10
13秒前
xxxllllll发布了新的文献求助30
13秒前
13秒前
CodeCraft应助wangqiuhong采纳,获得10
14秒前
16秒前
桐桐应助jszhoucl采纳,获得10
16秒前
黄健斌完成签到,获得积分10
17秒前
HarryChan完成签到,获得积分10
19秒前
22秒前
23秒前
23秒前
华仔应助小绵羊采纳,获得10
25秒前
Andema发布了新的文献求助10
26秒前
俏皮芷蕊发布了新的文献求助10
27秒前
28秒前
xiao_niu完成签到,获得积分10
28秒前
liu发布了新的文献求助10
29秒前
大模型应助墨水采纳,获得10
30秒前
cc完成签到,获得积分10
30秒前
Jackson完成签到,获得积分10
30秒前
852应助李茵采纳,获得10
31秒前
郭富城发布了新的文献求助10
31秒前
32秒前
量子星尘发布了新的文献求助10
36秒前
36秒前
Andema完成签到,获得积分10
37秒前
37秒前
老大蒂亚戈应助俏皮芷蕊采纳,获得10
37秒前
搜集达人应助木可采纳,获得10
40秒前
orixero应助wangjue采纳,获得10
41秒前
42秒前
liu完成签到,获得积分10
42秒前
Villanellel发布了新的文献求助50
43秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989444
求助须知:如何正确求助?哪些是违规求助? 3531531
关于积分的说明 11254250
捐赠科研通 3270191
什么是DOI,文献DOI怎么找? 1804901
邀请新用户注册赠送积分活动 882105
科研通“疑难数据库(出版商)”最低求助积分说明 809174