title: Extension of the shelf life of guava by individual packaging with cling and shrink films.
abstract: Guava is a climacteric fruit so physico-chemical changes continuously occur after harvest till fruit become unfit for consumption and suffers from post harvest losses. The main objective of this work was to assess the effectiveness of individual film in form of Shrink and Cling wrap on shelf life of guava. Fruits were individually packed in polythene bags (LDPE) of 200 gauge thickness by Shrink and Cling wrapping and stored at 7 ± 3 °C. Individual wrapping reduced the magnitude of changes during storage i.e., ripening process drastically as evident from lower total soluble solids, higher ascorbic acid, polyphenol content with lower polyphenol oxidase activity and physiological loss of weight (PLW) was less than 3.5 %. Film wrapping preserved freshness of wrapped fruits as they remained acceptable for whole storage time in contrast to control fruits which turned unacceptable by 15(th) day of storage. Control fruits showed significant compositional changes as well as in polyphenol content, ascorbic acid and reduced number of marketable fruits while Cling and Shrink wrapping enhanced the shelf life by 10 days.
authors.affiliation: Centre of Food Science and Technology, CCS Haryana Agricultural University, Hisar, Haryana 125004 India.
authors.forename: Seema
authors.initials: S
authors.lastname: Rana
authors.affiliation: Centre of Food Science and Technology, CCS Haryana Agricultural University, Hisar, Haryana 125004 India.
authors.forename: Saleem
authors.initials: S
authors.lastname: Siddiqui
authors.affiliation: Centre of Food Science and Technology, CCS Haryana Agricultural University, Hisar, Haryana 125004 India.
authors.forename: Ankit
authors.initials: A
authors.lastname: Goyal
keywords: Cling wrap; Individual packaging; Post harvest losses; Psidium guajava; Shrink wrap