Characteristics of seed oils and nutritional compositions of seeds from different varieties of Momordica charantiaLinn.cultivated in Bangladesh

Abstract

Farmers in rural areas of almost all the districts of Bangladesh cultivate different varieties of edible plant karela to satisfy nutritional requirements. Herein, we report on the characteristics of seed oils and nutrients and mineral contents of seeds from three varieties of karela. Most of the physicochemical characteristics were significantly (P < 0.05) affected with the samples tested. Seed oils of all varieties displayed a higher degree of unsaturation and in GLC reported herein, only five fatty acids were identified. The profiles of fatty acid composition were not wholly similar in all varieties in which unsaturated fatty acids represented more than 72%, α-eleostearic acid having been detected in the amount of 50.36-53.22%. Acylglycerol classes were estimated to be monoacylglycerols (1.18-2.01%), diacylglycerols (1.83-2.98%), and triacylglycerols (91.11-93.03%) whereas lipid classes included neutral lipids (86.83-91.09%), glycolipids (4.37-7.43%), and phospholipids (3.22-4.62%). Of the major energy producing nutrients, all varieties contained large amounts of lipid (33.93-36.21%) and protein (18.23-21.36%), and potentially useful amounts of calcium (383.45-440.96 µg/g), iron (41.10-45.03 µg/g), and other essential minerals. The nutrient information presented in this report should stimulate the local public health authorities in Bangladesh to consider the question of recommending the vegetable karela to be consumed by adults and children alike in Bangladesh, including pregnant women and others with higher than normal nutritional requirements.

Kudret narı (Momordica charantia L.) tohumunun bazı fiziksel ve kimyasal özellikleri ile tohum yağının yağ asitleri bileşimi

“…While our findings for fruit weight were similar with Mulani et al (2007) results, they were lower than Raja and Shanthi (2009) and Meenakshi et al (2007) findings. Oil and ash contents of the fruit seeds were found to be 33.93-36.21%, 2.25-2.73%, respectively by Ali et al (2008). Ash content showed similarity with this literature values.…”

“…Ash content showed similarity with this literature values. On the other hand, oil content was lower than Ali et al (2008) findings. Horax et al (2010) found the oil content of the seed was 18.1% for mature fruit and 36.51% for ripe fruit.…”

“…They also found α-eleostearic acid as major unsaturated fatty acid (61.5%) and stearic acid as unsaturated fatty acid (32.4%) in the seed oil. Another study was conducted in Bangladesh by Ali et al (2008). They analyzed the fatty acid composition of three different bitter melon seed oils.…”

“…Some researchers have conducted to determine the content of seed and also fatty acid composition of its oil. Ali et al (2008) , respectively. The main fatty acid of the oil was determined as α-eleostearic acid and its amount ranged between 50.36-53.22% in these cultivars.…”

<b>Physicochemical and antimicrobial properties of <i>Trichosanthes anguina</i> and <i>Swietenia mahagoni seeds</i></b>

“…Smoke point of S. mahagoni seed oil could not be determined due to the oil low burning characteristics, soaking tendency, fluidity, etc. Flash and fire points as determined from T. anguina seed oil (331 and 361 °C) were higher than those of the experimental sample S. mahagoni (90 and 100 o C) and of tobacco seed oil (142 and 162 °C) [31]. Cloud and pour points of S. mahagoni seed oil (6 and −6 °C) appeared to be higher than the values estimated from the experimental sample T. anguina (1.10 and −7 °C) and also from the tobacco seed oil (−15 and −18 °C) detected by Abbas Ali et al [31].…”