Date seed oil as a potential natural additive to improve oxidative stability of edible vegetable oils

This study examined the effectiveness of different antioxidative compounds, namely 0.2% BHA (Butylated hydroxyanisole) + BHT (butylated hydroxytoluene), 0.03% α – tocopherol, and 3% and 6% tea seed oil (TSO) on the oxidative stability of vegetable oils. Four commonly used oils, viz. rapeseed oil (RSO), peanut oil (PNO), sunflower oil (SFO), and soybean oil (SBO), were assessed by the Schall Oven test method and monitored during the 12-day preservation period under 60°C. The total oxidation values (TOTOX) of the samples treated with 6% TSO were lower than those treated with 0.2% BHA+BHT. The results indicated the potential of TSO as a novel natural antioxidant for dietary vegetable oils. Our study also suggested that TSO could serve as an effective substitution for currently used synthetic antioxidants such as BHA and BHT.

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A feasibility study to produce biodiesel from date seed oil by using trans- esterification process.

Sustainability Agri Food and Environmental Research ◽

10.7770/safer-v10n1-art2517 ◽

2021 ◽

Vol 10 (1) ◽

Author(s):

Athraa Aziz Saif Aziz AL-Hasni ◽

S.V. Satyanarayana

Keyword(s):

Gas Chromatography ◽

Renewable Energy ◽

Methyl Ester ◽

Vegetable Oils ◽

Alternative Energy ◽

Seed Oil ◽

Supply And Demand ◽

Energy Resources ◽

Renewable Energy Resources ◽

Date Seed

There is a need to produce renewable energy resources to reduce the gap between supply and demand. The renewable energy can be generated from various kinds of resources like vegetable oils and animal fats. Biodiesel is one of alternative energy resources that can be an appealing option to solve many of global and environmental issues and crises. Production of biodiesel from several types of vegetable oils has become a promising option. The aim of this technical project is to produce biodiesel from date seed oil. The date seed oil is extracted from the date seeds. The date seed is mixed with methanol in 1:3 ratio in presence of catalyst. The mixture was kept in a hot air oven at 55 -60 degrees centigrade for six hours. The Trans esterification process produced a glycerol and methyl ester which is the biodiesel. The glycerol settled down due to its high-density and the upper layer was biodiesel (methyl ester) due to less density. The mixture was separated using a separating funnel. The biodiesel was purified by recovering methanol by using rotary evaporator. The biodiesel produced from date seed oil is analyzed for the viscosity, density, the calorific value was also obtained, and the Flash and Fire point was performed, determine the functional elements of biodiesel using Gas Chromatography. It was observed by gas chromatography analysis that the produced biodiesel contains nearly 70% of methyl ester which is a main component of biodiesel. The density of produced biodiesel was 0.895 g/cm3.The standard biodiesel density is 0.85 g/cm3. The results were compared with standard biodiesel values. Also, the produced biodiesel has been compared with the quality of standard biodiesel. The project yielded better results. Keywords: biodiesel, date seed oil, flash point, Trans- esterification.

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