scholarly journals Physicochemical Property and Some Vitamin Contents of Telfaria occidentalis Seeds Oil

2021 ◽  
Vol 25 (4) ◽  
pp. 677-681
Author(s):  
B.N. Aguebor-Ogie ◽  
A.C. Ukwuonwo-Ediale ◽  
G.E. Eriyamremu
Keyword(s):  
Chemical Properties ◽  
Acid Value ◽  
Physicochemical Characteristics ◽  
Hot Press ◽  
Pumpkin Seed ◽  
Processing Application ◽  
Light Yellow ◽  
Edo State ◽  
Pumpkin Seed Oil ◽  
Local Farm

Fluted pumpkin, a member of the Cucurbitaceae family, is a versatile fruit and is used for various food processing application in Nigeria. As a result of its versatility, this study was conducted to ascertain the physiochemical characteristics and some vitamins content of its seeds oil. The pumpkin pods were gotten from a local farm in Benin metropolis, Edo state, Nigeria. The extraction of oil was conducted by the use of Seed-2-oil ® hot press machine. Various other standard methods were employed in the study. The physicochemical characteristics showed that the light yellow oil had a refractive index of 1.4710C ± 0.001 and melting point of 19.670C ± 1.80 while the chemical properties revealed acid value (0.64 mg KOH/ g of oil ± 0.05), peroxide value (0.99 Meq of 𝑂2/Kq of  Oil ± 0.01), saponification value (189.73 mg KOH/g of oil ± 5.20) and p-anisidine (0.09 ± 0.01) respectively. The findings for the vitamins revealed vitamin A (781IU ± 1.35), D (1361IU ± 0.14) and K3 (8.145IU ± 0.36) respectively. The findings from this study  revealed that pumpkin seed oil can be a good nutritive enrichment of foods and food products and a possible utilization in pharmaceuticals.

scholarly journals Physicochemical Property and Some Vitamin Contents of Telfaria occidentalis Seeds Oil

2021 ◽  
Vol 25 (4) ◽  
pp. 573-578
Author(s):  
B.N. Aguebor-Ogie ◽  
A.C. Ukwuonwo-Ediale ◽  
G.E. Eriyamremu
Keyword(s):  
Chemical Properties ◽  
Acid Value ◽  
Physicochemical Characteristics ◽  
Hot Press ◽  
Pumpkin Seed ◽  
Processing Application ◽  
Light Yellow ◽  
Edo State ◽  
Pumpkin Seed Oil ◽  
Local Farm

Fluted pumpkin, a member of the Cucurbitaceae family, is a versatile fruit and is used for various food processing application in Nigeria. As a result of its versatility, this study was conducted to ascertain the physiochemical characteristics and some vitamins content of its seeds oil. The pumpkin pods were gotten from a local farm in Benin metropolis, Edo state, Nigeria. The extraction of oil was conducted by the use of Seed-2-oil ® hot press machine. Various other standard methods were employed in the study. The physicochemical characteristics showed that the light yellow oil had a refractive index of 1.4710C ± 0.001 and melting point of 19.670C ± 1.80 while the chemical properties revealed acid value (0.64 mg KOH/ g of oil ± 0.05), peroxide value (0.99 Meq of 𝑂2/Kq of Oil ± 0.01), saponification value (189.73 mg KOH/g of oil ± 5.20) and p-anisidine (0.09 ± 0.01) respectively. The findings for the vitamins revealed vitamin A (781IU ± 1.35), D (1361IU ± 0.14) and K3 (8.145IU ± 0.36) respectively. The findings from this study revealed that pumpkin seed oil can be a good nutritive enrichment of foods and food products and a possible utilization in pharmaceuticals.

scholarly journals Cucurbita maxima Pumpkin Seed Oil: from the Chemical Properties to the Different Extracting Techniques

2018 ◽  
Vol 46 (2) ◽  
pp. 663-669 ◽  
Author(s):  
Leila REZIG ◽  
Moncef CHOUAIBI ◽  
Rosa Maria OJEDA-AMADOR ◽  
Sergio GOMEZ-ALONSO ◽  
Maria Desamparados SALVADOR ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Bioactive Compounds ◽  
Seed Oil ◽  
Unsaturated Fatty Acids ◽  
Chemical Properties ◽  
Seed Oils ◽  
Cucurbita Maxima ◽  
Pumpkin Seed ◽  
Pumpkin Seed Oil ◽  
Cold Pressed

Pumpkin seed oils are rich in bioactive compounds such as tocopherols, sterols, β-carotene, and lutein that have, along with some fatty acids, high nutritional value factors. In addition, it has so far been proven that these compounds have a positive effect on human health. The present study mainly aimed at evaluating the chemical composition and the bioactive compounds of pumpkin (Cucurbita maxima) seed oil of the ‘Béjaoui’ Tunisian cultivar using both cold pressing and solvent extraction methods. The seed oils contained substantial amounts of unsaturated fatty acids, particularly oleic and linoleic acids, with values ranging respectively from 28.19% for cold pressed pumpkin seed oil to 30.56% for pumpkin seed oil extracted by pentane and from 43.86% for pumpkin seed oil extracted by pentane to 46.67% for cold pressed pumpkin seed oil of the total amount of fatty acids. Investigations of different seed oils revealed that extraction techniques had significant effects on the antioxidant activity and the γ-tocopherol. Cold pressed pumpkin seed oil revealed the highest γ-tocopherol content (599.33 mg kg-1) and the highest oxidative stability (3.84 h). However, the chloroform/methanol extracted pumpkin seed oil, which is rich in total phenolics (54.41 mg Gallic Acid Equivalent kg-1), was a more effective scavenger of DPPH radicals (250 µmoles Trolox kg-1) than the poor phenolic pumpkin seed oils extracted by hexane and pentane (110 µmoles Trolox kg-1 vs 100 µmoles Trolox kg-1). Based on its unique seed oil features, cold press extracted pumpkin seed may add great value to product innovation in the industrial, nutritional, cosmetic, and pharmaceutical fields.

scholarly journals Physicochemical Characterization and Evaluation of Emulsions Containing Chemically Modified Fats and Different Hydrocolloids

Biomolecules ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 115 ◽  
Author(s):  
Małgorzata Kowalska ◽  
Magdalena Woźniak ◽  
Anna Żbikowska ◽  
Mariola Kozłowska
Keyword(s):  
Fatty Acids ◽  
Physicochemical Properties ◽  
Seed Oil ◽  
Structured Lipids ◽  
Physicochemical Characterization ◽  
Acid Value ◽  
Fatty Acids Composition ◽  
Pumpkin Seed ◽  
Nonpolar Fraction ◽  
Pumpkin Seed Oil

The study aims to investigate the physicochemical properties and stability of the dispersion systems containing structured fats as a fatty base. In this work, calf tallow and pumpkin seed oil blends were chemically interesterified at various ratios (9:1, 3:1, 3:2, 3:3, 2:3, and 1:3) to produce structured lipids. Fatty acids composition, polar and nonpolar fraction content, and acid value were determined for the raw fats and interesterified blends. Afterwards, selected blends were applied in emulsion systems. Stability, microstructure, color and texture of emulsions were evaluated. The chemical interesterification had an effect on the modified blends properties, and caused an increase in polar fraction content and acid value, and a decrease in nonpolar fraction content. No effect on the fatty acids composition has been found. The evaluation of the prepared emulsions results allowed us to select two of the most stable and favorable samples—both containing chemically interesterified calf tallow and a pumpkin seed oil blend in a ratio of 1:3 as a fatty base, and xanthan gum or carboxymethylcellulose as a thickener. The obtained dispersions, containing fatty bases with improved physicochemical properties and desirable functionality, can be applied as food, cosmetic, and pharmaceutical emulsions.

scholarly journals Technosols Development in an Abandoned Mining Area and Environmental Risk Assessment

2021 ◽  
Vol 11 (15) ◽  
pp. 6982
Author(s):  
Chiara Ferronato ◽  
Gilmo Vianello ◽  
Mauro De Feudis ◽  
Livia Vittori Antisari
Keyword(s):  
Central Italy ◽  
Organic Matter Content ◽  
Chemical Properties ◽  
Soil Surface ◽  
Mining Area ◽  
Physicochemical Characteristics ◽  
Matter Content ◽  
Mine Tailing ◽  
Inorganic Materials ◽  
Soil Features

The study of Technosols development, spatial distribution and physicochemical characteristics is becoming more and more important in the Anthropocene Era. The aim of the present study was to assess soil features and potential heavy metal release risk of soils developed on different mine tailing types after the waste disposal derived from mining activity in Central Italy. Soils were analyzed for their morphological, physical and chemical properties, and a chemical sequential extraction of heavy metals was performed. The investigated soils were classified as Technosols toxic having in some layer within 50 cm of the soil surface inorganic materials with high concentrations of toxic elements. Our findings showed that the bioavailability of potentially toxic element concentrations in the soil changed according to the origin of the mine tailing. However, because of the acidic pH, there is a serious risk of metals leaching which was reduced where the soil organic matter content was higher.

scholarly journals The Quality of Emulsions with New Synthetized Lipids Stabilized by Xanthan Gum

Biomolecules ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 213
Author(s):  
Małgorzata Kowalska ◽  
Paweł Turek ◽  
Anna Żbikowska ◽  
Monika Babut ◽  
Jerzy Szakiel
Keyword(s):  
Unsaturated Fatty Acids ◽  
Consumer Preferences ◽  
Enzymatic Modification ◽  
Sensory Panel ◽  
Pumpkin Seed ◽  
Consumer Evaluation ◽  
Emulsion Systems ◽  
Pumpkin Seed Oil

The study investigated the quality of emulsions containing rabbit fat modified with vegetable oil. The modification of the fat and introducing it as a fatty base into the emulsion was dictated by consumer preferences. Emulsion systems containing various fatty bases and viscosity modifier contents were evaluated in the terms of their stability (by means of Turbiscan test), texture properties, color, and viscosity. Moreover, the emulsions were assessed by a sensory panel in the context of the intensity of the following parameters: color, fragrance, consistency, greasiness, and hydration. The same characteristics were also subject to consumer evaluation. The results of the sensory assessment showed the sensory panel attributed higher scores to consistency and skin hydration to the emulsions formed with modified fats; these systems were more appreciated by consumers as well. The results confirmed a major role of sensory determinations in the development of new emulsion products. They also provide knowledge on modifications to product characteristics that would lead to the best possible quality and consumer acceptance. This research has also reaffirmed that looking for new fats among waste fats is becoming a solution to finding new fatty bases for emulsions. The natural origin of these components, and thus their agreeability with the human body, appear noteworthy as well. Enrichment with unsaturated fatty acids is an added advantage of the enzymatic modification of rabbit fat with pumpkin seed oil and can be applied not only for food but also for skin applications.

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