Abstract
In recent years, the use of various chemicals before and after harvest has become common to boost shelf life. However, the use of these chemicals has its own drawbacks, as some of them are considered to be harmful to the environment and also unfeasible. The main objective of this study is to use edible herbal coating formulations based on Moringa gum [MG] (Concentration: 1, 2 3, 4 and 5 %) and cinnamon essential oil (1 %) for the enhancement of quality and lifespan of guava kept at room temperature for 15 days by applying two methods of coating; dipping and brushing. The guava was dipped and brushed in MG solution for 2 minutes. Analyses of the guavas were done at every 3 days interval. The treatment C3D (Concentration 3 %; dipping) showed the minimum shrinkage index (13.34 %), Physiological Weight Loss [PWL] (27.09 %), fungal decay (70 %), pH (3.76), Total Soluble Solids (TSS) (11.14 °B), mesophilic microbial count (6.73 log CFU/g) as compared to the other samples. The maximum firmness (190.72 N), Titratable Acidity [TA] (0.28 g/L), antioxidant content (15.58 %) and phenolic content (15.93 mg GAE/g) were also observed in C3D coated guavas. These findings indicate that usage of C3D MG coating was successful in maintaining the physiochemical properties of guava and in preserving the fruit's sensory qualities. Future studies would benefit the industries on the utilization of MG for postharvest management of fruits and vegetables as a healthy alternative to chemical fungicides.
Highlights
Crops were cultivated for immediate use and sold on local markets
Regardless of storage period, it was observed that C3D (13.34 %) showed lower mean shrinkage index on the 15th day of storage followed by C4D (14.07 %) and C3B (15.16 %)
While comparing the physiological weight loss of guavas coated with different concentrations of the herbal extract it was found that C3D (27.09 %) had a lower physiological weight loss followed by C3B (29.08 %) and C4D (29.38 %)
Summary
Crops were cultivated for immediate use and sold on local markets. This evolved as communication facilities enhanced delivery technology, increased inventory storage and better transportation systems. Many developing countries in the tropical region are vulnerable to catastrophic consequences of elevated temperatures and relative humidity due to fruit processing and handling schemes. Effective new production handling schemes were built to ship fruits to global consumers, as compared to national and local markets [1]. It really is consequential to track postharvest diseases to tidy crop efficiency. The optimal edible coating needs to develop a layer that can prevent the removal of appropriate volatile taste and water vapour while reducing CO2 and O2 transmission, producing a modified environment
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