total phenolic contents of black soya bean oleifera oil vegetable oils

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THE CONTENT AND ANTIOXIDANT ACTIVITY OF PHENOLIC COMPOUNDS

The total phenolic content of cold‐pressed oils is shown in Table 1. The highest total phenolic content was obtained in the pumpkin and hemp oils (2.5 and 2.4 mg/100 g, respectively). The highest total phenolic content was obtained in the pumpkin and hemp oils (2.5 and 2.4 mg/100 g, respectively).

(PDF) Total Phenolic Contents and Antioxidant Potential of

Total Phenolic Contents and Antioxidant Potential of Soya Bean and Maize and their Beverages In vitro Article (PDF Available) · January 2016 with 126 Reads How we measure 'reads'

Profiling and quantification of phenolic compounds in

The total content of phenolic acids content of the C. oleifera seed oils was 16.46–34.57 μg/g, which is much lower than that of C. sinensis seed oil, despite these seed oils containing a similar proportion of phenolic compounds (79.3–88.3% for C. oleifera and 76.2–85.3% for C. sinensis).

THE CONTENT AND ANTIOXIDANT ACTIVITY OF PHENOLIC COMPOUNDS

The total phenolic content of cold-pressed oils is shown in Table 1. The highest total phenolic content was obtained in the pumpkin and hemp oils (2.5 and 2.4 mg/100 g, respectively). Grapeseed oil was characterized by the lowest total phenolic compound content (0.51 mg/100 g).

Enhancing shelf life of vegetable oils blend by using

Total phenolic content of M. oleifera leaf extract was 6.9 [+ or -] 0.14% gallic acid on dry basis; almost similar to the earlier findings (Nadeem et al, 2013a; Anwar et al., 2007). Peroxide value slowly and steadily increased during the storage period of 90 days.

THE CONTENT AND ANTIOXIDANT ACTIVITY OF PHENOLIC COMPOUNDS

The highest content of total phenolic compounds was determined for the pumpkin and hemp oils – about 2.4 mg/100 g. Rapeseed oil was characterized by the highest content of phenolic acids, especially sinapic acid. To better understand the beneficial effects of antioxidant compounds in vegetable oils, it is important to investigate whether

Polyphenol Content and Antioxidant - PubMed Central (PMC)

Total tannin content was the lowest in total polyphenol-rich varieties (i.e., black and brown) (0.71–0.89 mg of GAE/g of DM), whereas the green seed variety had the highest content (1.55 mg of GAE/g of DM). The relative portion of tannins in black and brown seeds may be considered low, which is of importance to soybean features as an

Oxidative stability of vegetable oils as affected by

Peroxide value (PV) In a conical flask (250 mL) vegetable oils sample (4 ± 0.5 g) was taken along with chloroform (10 mL), glacial acetic acid (15 mL) and fresh saturated aqueous potassium iodide solution (1 mL). The flask was stoppered and shaken vigorously for 1 min and then kept in the dark for 5 min more.

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Stability and volatile oxidation compounds of grape seed

The total phenolic contents in the oils ranged from 554 mg GAE/kg oil (FSO) to 1140 mg GAE/kg oil (BSO). Luteolin, dihydroquercetin and benzoic acids were the dominant bioactives and phenolics in FSO, GSO and BSO, respectively.

Antioxidant activity of various plant extracts under

The vegetable oils were stabilized with extracts at a dosage of 0.12% (w/w), and individually subjected to accelerated (65 o C, 15 days) and ambient (6 months) storage. The oxidative deterioration level was monitored for the measurement of antioxidant activity index (AI), peroxide value (PV), conjugated dienes and trienes contents.

Oxidative stability of vegetable oils as affected by

In vitro antioxidant activities and protective effects of sesame cake extract in stabilising sunflower and soybean oils were tested. Total phenolic, flavonoid and flavonol contents in the extract of sesame cake were 1.94 ± 0.02 (mg gallic acid equivalent (GAE) g−1 dry weight (DW)), 0.88 ± 0.02 (mg quercetin equivalent (QE) g−1 DW), and 0.40 ± 0.02 (mg QE g−1 DW), respectively.

Biochemical studies on moringa oleifera seed oil

Phenolic compounds have been proved to be responsible for antioxidant activity on many vegetable seeds oils, it is mainly due to their redox properties, which can play an important role in absorbing and neutralizing free radicals, quenching singlet and triplet oxygen or decomposing peroxides. 23 Total phenolic compounds in the M. oleiferaseed oil was (160.00μg/g).

The Determination Of Acid Value Levels In Commercial Soya

Soya oil and olive oil are vegetable oils, Soya bean oil are extracted from the seeds of the Soya bean (glycine max). peanut oil is an oil obtained from the olive (olea empaea, family oleaceae). peanut oil is a blend of virgin and refined production oil of no more than 1.5% acidity. It commonly lacks a strong flavour.

Quantitation of the Total Catechin Content in Oils

the highest total catechin content of 9.8 ± 0.25 and 9.0 ± 0.83 (×−3% flavonoids) respectively. 10 Statistically significant differences (p < 0.05) were evident in the total catechin contents of crude oils extracted from tea seeds with those extracted from corn, sunflower and soybean seeds. More-

Fatty Acids Profile and Chemical Composition of Egyptian

Abstract. Moringa oleifera is grown all over the world as a crop for its nutritious pods, leaves and seeds. The purpose of the present study was to evaluate the oil percentage, density, iodine value, saponification value, acid value and fatty acid profile of Egyptian moringa Seed oils.

Chemical Characteristics and Nutritional Properties of

High productivity, perennial nature of the plant, and low cost of oil production make the palm oil obtained from E. guineensis (henceforth referred to as “palm oil”) the most produced and marketed vegetable oil worldwide. A total of 66.9 × 10 6 t of palm oil and 7.8 × 10 6 t of palm kernel oil were produced in 2017; Malaysia and Indonesia are the most important producers, with 57 × 10 6 t in all, corresponding to 85% of the world production .

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Quantitation of the Total Catechin Content in Oils

The total catechin contents of the crude tea and control oils were as given in Table 1. Oils extracted from clone TRFK K-Purple and GW-Ejulu had the highest total catechin content of 9.8 ± 0.25 and 9.0 ± 0.83 (×10 −3 % flavonoids), respectively.

Grasas y Aceites, Vol 64, No 5 (2013) - CSIC

The Moringa oleifera crop is grown all over India for its nutritious pods, leaves and seeds.M. oleifera seeds are endowed with a high oil content (~39%) which resembles olive oil because of its high oleic acid content (~65-75%). The objective of the present study was to evaluate the natural antioxidants of crude seed kernel oil from the Jaffna variety of M. oleifera (MSO).

Antioxidant activity of various plant extracts under

The vegetable oils were stabilized with extracts at a dosage of 0.12% (w/w), and individually subjected to accelerated (65 o C, 15 days) and ambient (6 months) storage. The oxidative deterioration level was monitored for the measurement of antioxidant activity index (AI), peroxide value (PV), conjugated dienes and trienes contents.

Chemometric studies of the effects of milk fat replacement

Representative near infrared spectra of the 4 filled milk powder (FMP) types formulated with 3 proportions (10%, 20% and 30%) of 4 different vegetable oils; in addition to the spectra of freeze-dried raw milk powder (WMP). CO, PO, SBO and SFO represent the coconut oil, palm oil, soya-bean oil and sunflower oil FMP types respectively.

Physicochemical properties and stability of Moringa

Physicochemical properties and stability of Moringa oleifera seed oil-in-water emulsions as affected by different types of polysaccharide and emulsifier Moringa oleifera seed oil is a promising medicinal oil and converting it into a functional food emulsion is of current interest to widen its consumption.

Investigation into the Use of Vegetable Oil as Industrial

The refined vegetable oils have different proportions of the common fatty acids given below. For example soya-bean oil has 25% oleic acid, 5% stearic acid and 99% palmitic acid. Similarly, groundnut oil with 52% oleic acid is the highest d acid in its content. The unrefined vegetable oils are usually crude and have several impurities in them.

Moringa oleifera oil: from traditional medicine to modern

Moringa oil has a rather low concentration of tocopherols (Ca. 300 ppm total tocopherols with alpha and delta tocopherols being the dominant forms). Despite low tocopherol content, it has a high thermal and oxidative stability and has been used for centuries as a cooking oil in the sub-Himalayan regions (look at the low iodine value).

IMPACT OF PANDAN LEAF EXTRACT ADDITION ON THE QUALITY AND

acid peroxidation and total phenolic content. Since 80% methanolic extract showed highest antioxidant activity among the extracts, it was then further evaluated using sunflower oil during microwave heating. The vegetable oil was stabilized with extract at a dosage of 0.1, 0.2 and 0.4% and subjected to microwave heating (0-24

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