Investigation of Oil and Protein Contents of Eight Sudanese Lagenaria siceraria Varieties

Abstract

The composition of the oil and protein contents of eight Lagenaria siceraria varieties was characterized in order to evaluate their suitability as a source of edible oil and protein. The physicochemical properties and fatty acids of seed oils were determined. The oil yield ranged from 24.11 to 26.32 %. The refractive indices and relative densities of the oils fell within the narrow ranges of 1.464–1.468 and 0.857–0.907 g/cm3, respectively. The saponification value ranged from 158.48 to 179.52 mg KOH/g, unsaponifiable matter was between 0.749 and 0.937 %, and the peroxide values were lower than Codex values for vegetable oils. The principal fatty acids were linoleic (62.1–67.9 %), oleic (11.54–15.46 %), palmitic (12.13–14.03 %), and stearic (6.71–7.71 %) acids. Low linolenic acid levels were also observed (<1 %) within the range of 0.32–0.44 %. The major essential amino acids were arginine (2.04–3.77 g/100 g), leucine (1.245–1.726 g/100 g), phenylalanine (0.803–1.396 g/100 g), and lysine (0.921–1.383 g/100 g). The non‐essential amino acids were glutamic acid (2.5–4.37 g/100 g), aspartic acid (1.39–2.36 g/100 g), serine (0.69–1.19 g/100 g), glycine (0.79–1.37 g/100 g), alanine (0.72–1.37 g/100 g), and proline (0.63–1.02 g/100 g). Nine minerals (Na, Ca, Mg, K, Cu, Fe, Mn, Zn, and P) were determined with significant (p < 0.05) differences. The studied oils showed promising results and can be used in the food, cosmetics, and pharmaceutical industries. This is the first study on the eight L. siceraria seed varieties grown in Sudan, opening the way for further studies on these seeds.

Exploration of Shorea robusta (Sal) seeds, kernels and its oil

“…Lower value of specific gravity suggests that sal oil is of high purity as compared to many other non-conventional oils. The refractive index of the sal oil (1.44)was within similar range of other edible oils from sesame seeds and sunflower seeds (Mariod, Mustafa, Nour, Abdulla, & Cheng, 2015). It also indicates that the sal oil is thinner than many other similar type of oils with refractive indices between 1.475 and 1.485 (Akinhanmi et al, 2008).…”

Türkiye Genetik Kaynaklarından Bazı Su Kabağı (Lagenaria Siceraria Standl. Mol.) Genotiplerinin Meyve ve Tohum Özellikleri ve Tohum Verimi

“…After the inside of the ripe fruit (seed and spongy texture) is removed, they can be used in making kitchen cups, water flask, musical instrument, decorative stuff, water pipe or in some cases, fishing net floaters (Decker-Walters et al 2001;Morimoto et al 2005). Oil is also extracted from the bottle gourd seeds in some African countries (Loukou et al 2007;Mariod et al 2015). Young fruits, seeds, tendril, shoots, and young leaves extracts have been also used in some local drug mixtures (Herklots 1972;Moerman 1998;Manandhar 2002).…”