TY - JOUR
T1 - A polymeric chlorine dioxide self-releasing sheet to prolong postharvest life of cherry tomatoes
AU - Sadeghi, Kambiz
AU - Kasi, Gopinath
AU - Ketsuk, Phuntheera
AU - Thanakkasaranee, Sarinthip
AU - Bahadar Khan, Sher
AU - Seo, Jongchul
PY - 2020/3
Y1 - 2020/3
N2 - Chlorine dioxide (ClO2) as an effective sanitizer is widely used in postharvest handling. Because of its generation challenge such as equipment requirement for on-site production and ClO2 generator, application of ClO2 gas in retail is not currently feasible. In this study, a novel polymeric ClO2 self-releasing sheet was prepared using solution casting method. As such, sodium chlorite (NaClO2) can react with the citric acid in the polymer matrix in the presence of moisture. Poly (ether-block-amide) as the backbone of sheet was utilized to provide a hydrophilic system and generate of ClO2 gas. In addition, polyvinyl alcohol was used as a barrier layer to control the releasing level and increase the hydrophilicity. The new developed self-releasing sheet released sufficient ClO2 concentration to inactivate microbial growth and maintain the quality of cherry tomatoes during actual storage test. Overall, the self-releasing sheet containing lower content of NaClO2 exhibited better postharvest parameters. The new developed ClO2 self-releasing sheet is not just limited to postharvest handling and cherry tomatoes; it could also be used for wider applications such as medical sterilization or industrial sanitization.
AB - Chlorine dioxide (ClO2) as an effective sanitizer is widely used in postharvest handling. Because of its generation challenge such as equipment requirement for on-site production and ClO2 generator, application of ClO2 gas in retail is not currently feasible. In this study, a novel polymeric ClO2 self-releasing sheet was prepared using solution casting method. As such, sodium chlorite (NaClO2) can react with the citric acid in the polymer matrix in the presence of moisture. Poly (ether-block-amide) as the backbone of sheet was utilized to provide a hydrophilic system and generate of ClO2 gas. In addition, polyvinyl alcohol was used as a barrier layer to control the releasing level and increase the hydrophilicity. The new developed self-releasing sheet released sufficient ClO2 concentration to inactivate microbial growth and maintain the quality of cherry tomatoes during actual storage test. Overall, the self-releasing sheet containing lower content of NaClO2 exhibited better postharvest parameters. The new developed ClO2 self-releasing sheet is not just limited to postharvest handling and cherry tomatoes; it could also be used for wider applications such as medical sterilization or industrial sanitization.
UR - http://www.scopus.com/inward/record.url?scp=85075417747&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85075417747&partnerID=8YFLogxK
U2 - 10.1016/j.postharvbio.2019.111040
DO - 10.1016/j.postharvbio.2019.111040
M3 - Article
AN - SCOPUS:85075417747
VL - 161
JO - Postharvest Biology and Technology
JF - Postharvest Biology and Technology
SN - 0925-5214
M1 - 111040
ER -