English

Paulino Da Silva Flavio,Perpetua Ferraz Vany,Montero Fernández Ismael,Antonio Saravia Maldonado Selvin,Santos Alemán Ricardo,Abrahan Marcia Fuentes Jhunior,Rorigues Da Silva Simone,De Morais Linhares Bernardo

doi:10.5897/ajb2019.16855

Abstract

The aim of this work was to perform chemical and physical-chemical analyzes of the oil of the cultivars Valenciano Amarelo melon (VA) and Pele de Sapo melon (PS) (Cucumis melo L.) produced in Boa Vista, Roraima, Brazil, by GC -FID, IR, 1H NMR and the thermogravimetric behavior TG/DTG as well as yield of that obtained oil. Thus, the oil yield of Valenciano melon seeds was 28.47% and that of Pele de Sapo melon was 26.41%. The chemical composition of the oils of the two cultivars presented major fatty acids, such as palmitic acid, linoleic acid (57.5-59.4%) and oleic acid (22.8-23.3%). The physico-chemical characterization of these oils showed for Valenciano melon and Pele de Sapo melon, respectively, 125.02 and 120.96 g I2 100 g-1 for the iodine value and 187.80 and 185.65 mg KOH g-1 for saponification index. The behavior of the thermal degradation by TG/DTG of the melon seeds oils VA and PS occurred between 341.08 and 522.03°C, and 334.83 and 524.29°C, respectively.   Key words: Oleic acid, cucurbitaceas, biotechnology, essential fatty acids.

Highlights

Melon is one of the olerícolas belonging to the family Cucurbitaceae, genus Cucumis
Melon cultivars found in Brazil are Honey Dew, Pelede-sapo, Orange Flesh, Cantaloupe, Gália, Orange and an AF-522 hybrid commercially classified as a yellow melon type (Melo et al, 2000)
The Valenciano melon seeds had higher yields compared to the Pele de Sapo melon species

Summary

Introduction

Melon is one of the olerícolas belonging to the family Cucurbitaceae, genus Cucumis. It is an herbaceous and creeping plant of African origin (Bisognin, 2002), cultivated mainly in India and in tropical countries, with. Melon cultivation is carried out in regions with a very dry and bright climate good drainage soil and temperature ranging from 25 to 35 oC. Among the melons cultivated in Brazil, the cultivars of the odorless group, represented by the Valenciano and Pele-de-sapo types, are preferred by the producers, totaling about 90% of the planted area (Nunes et al, 2005)

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