Coating Effect of Modified Cassava Starch in Hass Avocado
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Date
2015-07
Journal Title
Journal ISSN
Volume Title
Publisher
Corporación Universitaria Lasallista
Abstract
Introduction.The production and commercialization
of avocado are growing, but there are postharvest
handling inconsistencies that lead to poor product
quality. This situation must be corrected in order to
ensure the proper conservation by using appropriate
techniques, such as the use of environmentally
friendly edible coatings. Objective.We evaluated the
effect of modified cassava starch coatings (Manihot
esculenta) on respiration rate, firmness, weight loss
and color development of the Hass variety avocado
(Persea americana Miller), at temperature of 24°C
and relative humidity of 77,5 %. Materials and
methods. A randomized complete block design with
four treatments was used: T1: uncoated fruits; T2: 2 %;
T3: 3 % and T4: 4 % starch, all with 2 % glycerin. Three
replicates were performed and the results were
subjected to analysis of variance (α=0,05). Results.
Significant differences were found for respiration rate
and color, with the 4 % starch coating being the most
responsive to maintaining fruit quality conditions.
Conclusions. Coatings with 2, 3 and 4 % starch
retained quality characteristics as a result of lower
weight and firmness loss, diminished respiration rate
and color preservation.
Description
Keywords
Corporación Universitaria Lasallista, Área Metropolitana del Valle de Aburrá, Aguacate (Persea Americana), Aguacate - Colombia, Aguacate - Investigación, Aguacate Hass, Postcosecha de frutas