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• Green Solvent Extraction and Quality Characteristics of Passion Fruit Seed Oil (Passiflora edulis Sims var. edulis)

  Nguyen Thi Thu Nga, Nguyen Xuan Bac, Lai Thi Ngoc Ha

  Received: May 14, 2020 / Published: May 15, 2020

   Abstract PDF

  The extraction of oil from passion fruit seeds with acetone, ethanol, ethyl acetate, isopropanol, and hexane was studied. The effects of the variables, namely type of solvent, material to solvent ratio, temperature, and extraction time, were investigated. The highest extraction yield was 78.52%, which was obtained using ethyl acetate with a material to solvent ratio of 1/10 at room temperature (28oC) for 4h using a shaker. This yield was similar to that obtained when using hexane as a solvent. Our results indicate that ethyl acetate can replace the conventional hexane solvent in the extraction of oil from passion fruit seeds. The high content of polyunsaturated fatty acids in passion fruit seed oil suggests that this product has good potential for use in the human food, cosmetic, and pharmaceutical industries.

• Dietary Supplementation with Sesame Seed to Improve Semen Quality of Ho Cocks

  Nguyen Thi Xuan, Nguyen Van Duy, Dang Thuy Nhung, Vu Dinh Ton

  Received: Feb 21, 2019 / Published: Aug 30, 2019

   Abstract PDF

  High levels of polyunsaturated fatty acids in chicken spermatozoa make them susceptible to lipoperoxidation and reduce their fertility. This study was conducted to assess the effect of sesame seed  suplementation in the diet on the semen quality of Ho cocks. Eighteen 13-14 month-old cocks were randomly divided into three groups and were assigned to one of the following treatments: 0% SS (control), 5% SS, or 7% sesame seeds per kg of diet for ten consecutive weeks after a two-week adaptation period. Semen characteristics were evaluated once a week. In the 7% sesame seed treatment group, seminal traits including semen ejaculate volume (1.02mL), sperm concentration (3.68 x 109 sperm), and abnormal spermatozoa (10.51% were improved (P <0.05) compared to the control group (0.82mL, 2.81 x 109 sperm, and 11.04% for semen ejaculate volume, sperm concentration, and abnormal spermatozoa, respectively). Supplementation with sesame seeds did not significantly affect sperm motility, mass movement, or semen pH. Our results demonstrate that sesame seed supplementation at 7% successfully improved the ejaculate volume, sperm concentration, and normal spermatozoa percentage of Ho cocks.