scholarly journals Physico-Chemical Properties and GCMS Analyses of Indigenous Rice Bran and Mustard Seed Oils and their Blends

2021 ◽  
Vol 34 (5) ◽  
Author(s):  
Mst. Sarmina Yeasmin
Keyword(s):  
Rice Bran ◽  
Chemical Properties ◽  
Mustard Seed ◽  
Seed Oils ◽  
Physico Chemical

The physico-chemical properties of some citrus seeds and seed oils

2016 ◽  
Vol 71 (3-4) ◽  
pp. 79-85 ◽  
Author(s):  
Fahad A.L. Juhaimi ◽  
Bertrand Matthäus ◽  
Mehmet Musa Özcan ◽  
Kashif Ghafoor
Keyword(s):  
Fatty Acids ◽  
Chemical Properties ◽  
Seed Oils ◽  
Mineral Contents ◽  
Bitter Orange ◽  
Physico Chemical ◽  
Citrus Seed ◽  
Citrus Seeds ◽  
Kinnow Mandarin ◽  
Oleic And Linoleic Acids

Abstract The chemical properties, mineral contents, fatty acid and tocopherol contents of seed and seed oils of some citrus genus provided from several locations in Turkey and Saudi Arabia were determined. While Ca contents of seeds were between 5018 mg/kg (Kütdiken lemon) and 7619 mg/kg (kinnow mandarin), K contents of seeds varied between 7007 mg/kg (Orlando orange) and 10334 mg/kg (kinnow mandarin). Glucose and fructose contents of citrus seed samples varied between 3.75 g/kg and 5.75 g/kg, and 4.09 g/kg and 6.03 g/kg. Palmitic, oleic and linoleic acids were established as dominant fatty acids. Palmitic, oleic and linoleic acid contents of citrus seed oils varied between 19.6% (Kütdiken lemon) and 26.2% (pineapple orange), 21.3% (kinnow mandarin) and 31.4% (Kütdiken lemon) and 32.3% (Kütdiken lemon) and 43.7% (kinnow mandarin), respectively. The total amount of tocopherols of Turkish citrus oil varied between 0.5 mg/100 g (Fremont mandarin) and 18.8 mg/100 g (bitter orange).

scholarly journals Studies on an Antitumor Polysaccharide RBS Derived from Rice Bran. I. Preparation, Physico-chemical Properties, and Biological Activities of RBS

1985 ◽  
Vol 105 (2) ◽  
pp. 188-193 ◽  
Author(s):  
ETSUO ITO ◽  
SUGURU TAKEO ◽  
HISAO KADO ◽  
HISAO YAMAMOTO ◽  
NOBUHIRO WATANABE ◽  
...  
Keyword(s):  
Rice Bran ◽  
Biological Activities ◽  
Chemical Properties ◽  
Physico Chemical

scholarly journals Effect of Temperature and Slice Size on Avocado Pulp Drying Rate and Oil Yield

2013 ◽  
Vol 34 (2) ◽  
pp. 116-124
Author(s):  
Abraham T. Temu
Keyword(s):  
Moisture Content ◽  
Chemical Properties ◽  
Oil Yield ◽  
Effect Of Temperature ◽  
Drying Rate ◽  
Seed Oils ◽  
Slice Thickness ◽  
Physico Chemical ◽  
Thin Layer Drying ◽  
Drying Models

The effect of temperature and slice thickness on avocado pulp drying rate and oil yield was determined at 50 o C, 60 o C and 70 o C. Pulp slices of 2mm and 5 mm thick were used. The avocado pulp was found to contain 74-75% (wet basis) water, which makes extraction of oil by both chemical and mechanical means difficult. Experimental results showed that oil yield increased with decreasing moisture content reaching a yield of 61% at 10% moisture content. The rate of drying increased with temperature, but decreased with slice thickness. The drying data obtained agreed well with several thin-layer drying models. The models showed that the characteristic drying constant increased linearly with drying temperature and decreased with slice thickness. The Physico-chemical properties of the obtained oil compared favorably with those obtained from other conventional seed oils.

Extraction and Characterization of Underutilized Seed Oils Sampled in South-western Nigeria

2019 ◽  
Vol 7 (1) ◽  
pp. 48-52
Author(s):  
Olufunso Omowunmi Adeniyi
Keyword(s):  
Seed Oil ◽  
Citrullus Lanatus ◽  
Chemical Properties ◽  
Sesame Seed ◽  
Acid Value ◽  
Seed Oils ◽  
Brown Colour ◽  
Physico Chemical ◽  
Soxhlet Apparatus ◽  
Nutritional Benefits

Citrullus lanatus (watermelon) and Sesamum indicum (sesame) are edible plants that provide a lot of nutritional benefits to man; despite their wide consumption and benefits, their seed oils remain underutilized. Seed oils from these plants found in south-western Nigeria were analyzed for their physico-chemical properties. Oil was extracted from the seeds using Soxhlet apparatus and n-hexane as the solvent; physico-chemical properties were determined using standard analytical procedures. Watermelon seed oil had a golden brown colour while sesame seed oil had a carton brown colour; they had saponification values of 258.99 mgKOH/g and 261.34 mgKOH/g respectively. Acid value ranged from 2.13 – 2.51 mgKOH/g; iodine value of 39.7 - 42.3 gI2/100g and peroxide value of 1.39 – 2.43 meqKOH/g was determined in the seed oils. Oils from these seeds have numerous domestic and industrial potentials such as cooking, frying, production of soaps, and cosmetics to mention a few.

scholarly journals Assessment of Physico-chemicaal Properties, Antifungal and Anti-sprouting Efficacy of Essential oils (Moringa oleifera and Sesame indicum Oil)

2021 ◽  
Vol 4 (3) ◽  
pp. 59-71
Author(s):  
Abel Y.K. ◽  
Olaleye O.O. ◽  
Ayanda I.S. ◽  
Olasope T.D.
Keyword(s):  
Moringa Oleifera ◽  
Seed Oil ◽  
Chemical Properties ◽  
Seed Oils ◽  
Chemical Parameters ◽  
Ph Values ◽  
Peroxide Values ◽  
Physico Chemical ◽  
Antifungal Potential

This study was aimed at evaluating the physico-chemical properties, antifungal and anti-sprouting efficacy of Moringa oleifera and Sesame indicum seed oil extracts. Physico-chemical parameters were determined and compared for both oils. There was significant (p < 0.05) difference observed between the refractive values (1.4570 and 1.4633), free fatty acid (FFA) (2.04 and 3.21 mg KOHg-1), acid values (6.08 and 6.43 mg KOHg-1), pH values (4.55 and 5.33), saponification values (210.75 and 215.57 mg of KOHg-1), peroxide values (5.40 and 5.80 meqO2/kg), specific gravity (0.8897 to 0.9161 g/cm3) and yield (8.25% and 32.02%) for cold press extracts of Sesame and Moringa seed oils respectively. In vitro antifungal efficacy of both oils (M. oleifera and S. indicum) against Aspergillus niger shows a range of 43.63% to 58.18% inhibition. No anti-sprouting effect was recorded across all concentrations tested for the two oils. However, the antifungal potential of both seed oil extracts (Moringa and Sesame) exhibited moderate inhibitory properties with the highest percentage inhibition at 48 hrs.

scholarly journals Physico-Chemical Properties of Biodiesel Produced from Neem Oil

2015 ◽  
Vol 47 ◽  
pp. 40-48 ◽  
Author(s):  
Prithviraj Bhandare ◽  
G.R. Naik
Keyword(s):  
Social Factors ◽  
Chemical Properties ◽  
High Viscosity ◽  
Hydroxyl Groups ◽  
Seed Oils ◽  
Neem Oil ◽  
Chemical Parameters ◽  
High Quality ◽  
Physico Chemical

Biodiesel is becoming prominent among the alternatives to conventional petro-diesel due to economic, environmental and social factors. The quality of biodiesel is influenced by the nature of feedstock and the production processes employed. High amounts of free fatty acids (FFA) in the feedstock are known to be detrimental to the quality of biodiesel. In addition, oils with compounds containing hydroxyl groups possess high viscosity due to hydrogen bonding. American Standards and Testing Materials, (ASTM D 6751) recommends FFA content of not more than 0.5% in biodiesel and a viscosity of less than 6 mm2/s. In this experiment the seed oils of 30 Neem (Azadirachta indica. A. juss) biotypes were screened and evaluated for their physico-chemical parameters for their potential in biodiesel. The properties of Neem biodiesel were compared with Bureau of Indian Standards (BIS) and the fuel properties of diesel. Results showed that high amounts of FFA in oils produced low quality biodiesel while neutralized oils with low amounts of FFA produced high quality biodiesel. The quality of biodiesel from jatropha and castor oils was improved greatly by neutralising the crude oils.

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