Compositional characteristics of cherry kernel oil as influenced by gamma irradiation and storage periods

2020 ◽  
pp. 108201322095673
Author(s):  
M Al-Bachir ◽  
Y Koudsi
Keyword(s):  
Refractive Index ◽  
Gamma Irradiation ◽  
Iodine Value ◽  
Peroxide Value ◽  
Research Work ◽  
Thiobarbituric Acid ◽  
Acid Value ◽  
Thiobarbituric Acid Reactive Substances ◽  
Saponification Value ◽  
And Storage

This research work was undertaken to evaluate the physicochemical parameters of oil from the cherry kernel non-irradiated and irradiated at 3 and 6 kGy of gamma irradiation for two storage periods (0 and 12 months). The acid value, peroxide value, thiobarbituric acid reactive substances value, iodine value, saponification value refractive index (peroxide value), and the color parameters of cherry kernel oils were determined. The results indicated that the extracted cherry kernel oils were liquid at room temperature with color varying from light yellow to deep red. The physicochemical properties of cherry kernel oils including acid value, peroxide value, thiobarbituric acid reactive substances, iodine value, saponification value, and refractive index values were 1.19 mg KOH g−1, 9.01 meq2 kg−1, 0.014 mg MDA kg−1, 99.48 KOH g−1 I2 100 g−1, 194.50 mg KOH g−1, and 1.472, respectively. Generally, gamma irradiation doses and storage time increased acid value, peroxide value, thiobarbituric acid reactive substances, and refractive index value of cherry kernel oils, whereas no significant (p > 0.05) change due to irradiation was recorded in iodine value, saponification value, and in color parameter (L*, a*, b*, and ΔE values) of cherry kernel oils. However, the properties of cherry kernel oils revealed that the cherry kernel is a good source of oil which could be used for industrial purposes.

scholarly journals Effect of storage time and gamma irradiation on the chemical properties of olive (Olea europaea) oils

2018 ◽  
Vol 7 (1) ◽  
Author(s):  
M. Al-Bachir
Keyword(s):  
Gamma Irradiation ◽  
Olive Oil ◽  
Iodine Value ◽  
Storage Time ◽  
Phenolic Content ◽  
Virgin Olive Oil ◽  
Chemical Properties ◽  
Thiobarbituric Acid ◽  
Saponification Value ◽  
And Storage

The objective of this study was to investigate the effects of gamma irradiation at doses of 0, 1, 2 and 3 kGy, and storage time of olive fruits for 0, 30 and 45 days on changes in chemical properties of olive oil during storage periods of 0, 6 and 12 months. The initial acidity value (AV), peroxide value (PV), Thiobarbituric Acid (TBA), phenolic content, iodine value (IV), and saponification value (SV) of virgin olive oil obtained from olives fruits immediately after harvest (at day zero) were 1.04%, 3.06 mEqO2 kg-1oil, 0.025 mg MDA kg-1 oil, 314.71 mg gallic acid kg-1 oil, 93.38 gI2 100 g-1 oil and 194.88 mg KOH g-1 oil, respectively. In general, the AV and PV of olive oil was increased by gamma irradiation, while the phenolic and IV of olive oil was deceased by gamma irradiation and storage time. The TBA value and SV of olive oil was not significantly (p>0.05) changed by gamma irradiation.

scholarly journals QUALITY CHARACTERISTICS OF CASSIA SIEBERIANA L.SEED OIL

2016 ◽  
Vol 3 (3) ◽  
pp. 293-297
Author(s):  
A. A. Warra
Keyword(s):  
Refractive Index ◽  
Chemical Analysis ◽  
Iodine Value ◽  
Peroxide Value ◽  
Seed Oil ◽  
Acid Value ◽  
Quality Characteristics ◽  
Saponification Value ◽  
Physico Chemical ◽  
Soxhlet Apparatus

Oil was extracted from the seed of Cassia sieberiana Lusing soxhlet apparatus. The oil yield was 9.26±0.01% and the colour of the seed oil was dark yellow. The results of the physico-chemical analysis revealed the following; acid value, iodine value, saponification value, peroxide value, relative density and refractive index of 0.35±0.01 mgKOH/g , 135.60 ±0.10 gI2/100g, 235.62 ±0.01 mgKOH/g, 1.8 ±0.10meq H2O2 , 0.8185±0.00 (g/cm3) and 1.4415 ±5.77 respectively indicating the suitability of the seed oil for pharmaceutical and cosmetic applications.

Development of quality standard of Ksheerabala oil: An Ayurvedic Formulation

2019 ◽  
Vol 10 (04) ◽  
pp. 567-570
Author(s):  
T Jyostna Kumari ◽  
G Penchala Pratap ◽  
Shyam Baboo Prasad ◽  
Goli Penchala Prasad
Keyword(s):  
Iodine Value ◽  
Peroxide Value ◽  
Research Work ◽  
Acid Value ◽  
Quality Standard ◽  
Herbal Drug ◽  
Saponification Value ◽  
Total Fat ◽  
Contemporary Study ◽  
Sida Cordifolia

This contemporary study is intended to standardize the Ksheerabalatailam with respect to Sida cordifolia root powder processed with sesame oil and milk. The chief objective of this contemporary research work is to assess the various Standardization properties of the Ksheerabalatailam like saponification value, Iodine value, Acid value, Peroxide value, Total fat, weight per milliliter, HPTLC and GCMS analysis. The physicochemical properties like the iodine value, saponification value, acid value, peroxide value, total fat, and HPTLC fingerprinting and GC-MS analysis were established. The results of these studies would be useful for authentication, standardization, and disclosing counterfeit deterioration of the original herbal drug of Ksheerabalatailam.

Characterization and Stability Studies of Egusi Melon Seed Oil (Citrullus colocynthis L.)

2021 ◽  
Vol 46 (2) ◽  
Author(s):  
C.O. Ajenu ◽  
M.E. Ukhun ◽  
C. Imoisi ◽  
E.E. Imhontu ◽  
L.E. Irede ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Iodine Value ◽  
Peroxide Value ◽  
Seed Oil ◽  
Thiobarbituric Acid ◽  
Acid Value ◽  
Melon Seed ◽  
Thiobarbituric Acid Value ◽  
Melon Seed Oil

The physical value of oil depends upon its chemical composition, even today these values play a vital role while using different oil for industrial products and also, despite the vast nutritional and medicinal significance of egusi melon, there are little details on the shell life and stability of its oil over time. Therefore, the influence of time and temperature on melon seed oil was investigated at temperatures of 0oC and 30oC at different weeks to ascertain its physicochemical value and storage stability. For week zero, at 0oC and ambient temperature (30oC), the result revealed iodine value 124.09, Acid value 3.64 mgNaOH/g, Free Fatty Acid value 1.84 mgNaOH/g, Saponification 217.35 mgKOH/g, Peroxide value 1.25 mg/g oil, pH 5.89 and thiobarbituric acid value 0.1383 respectively. In the 5th week, at 30oC, the result revealed iodine value 91.1543, acid value 12.8921 mgNaOH/g, free fatty acid value 6.4988 mgNaOH/g, Saponification 346.42 mgKOH/g, Peroxide value 9.5mg/g oil, pH 3.2 and thiobarbituric acid value 0.413 respectively. Also at 0oC in the 5th week, the results were observed as follow: Iodine value 102.53, Acid value 7.96 mgNaOH/g, Free Fatty Acid value 4.01 mgNaOH/g, saponification 287.51 mgKOH/g, Peroxide value 6.1 mg/g oil, pH 5.05, and thiobarbituric acid value 0.2658 respectively. Refrigeration (0oC) of oil reduced the rate of most of the oxidative deterioration that produces rancidity. These values are within recommended range for edible oils. These results indicate that egusi melon oil could be a good source of table oil. The statistical results show that there was a significant difference between the melon seed oil stored at 0oC and 30oC (P < 0.001).

scholarly journals COMPARATIVE PHARMACEUTICO ANALYTICAL STUDY TO EVALUATE THE CONCEPT OF AVARTANA WITH SPECIAL REFERENCE TO 1, 10, 50, 100 AVARTITA MADHUKA TAILA

2021 ◽  
Vol 9 (7) ◽  
pp. 1334-1343
Author(s):  
Anagha. V. G ◽  
Vikram. S
Keyword(s):  
Refractive Index ◽  
Specific Gravity ◽  
Iodine Value ◽  
Peroxide Value ◽  
Milk Fat ◽  
Analytical Study ◽  
Acid Value ◽  
High Potency ◽  
Active Constituents ◽  
Rf Values

Avartana is a unique concept mentioned for Sneha Kalpana. The more the number of Avartana the more potent will be the formulation. “Shata Paka Madhuka Taila" is one such formulation that is explained in Charaka Chikitsa Vataraktha Adhikara. Samples were subjected to pharmaceutico - Analytical study to compare the probable changes that would have happened pharmaceutically & analytically. Shata paka Madhuka Taila was prepared as per reference & samples were Analysed. The change in the organoleptic characters of all the Avartita samples was noted. Consistency of taila to semisolid consistency of ghruta in proceeding Avartana was observed. A slight increase in specific gravity & Refractive index were noted, decrease in acid value & iodine value was observed. Rancidity test passed & peroxide value was nil. slight acidic pH was noted. The presence of more bands with different Rf values was seen towards 50th, 75th & 100th Avartita samples on TLC. Pharmaceutical procedure reveals that concentration of the Active bio constituents of yastimadhu & milk fat gets increased in each Avartana., And it was evident from organoleptic characters like conversion of liquid Consistency of taila to semisolid consistency of ghruta (on cooling) in proceeding Avartana. A slight increase in specific gravity & Refractive index suggests more active constituents, decrease in acid value & iodine value suggests products are more stable & less chance of rancid on successive avartana. Rancidity & peroxide value tells product are not rancid. pH changes indicate slight acidicnature & may be irritant due to high potency. TLC shows the presence of more bands towards 50th, 75th& 100th avarti samples shows more active constituents. Hence Avartana process helps for potentiating the formulation by adding active constituents. Keywords: Sneha Kalpana, Avartana, Shata Paka Madhuka Taila.

scholarly journals Chemical composition, oxidative stability, and sensory properties of Boerhavia elegana Choisy (alhydwan) seed oil/peanut oil blends

2020 ◽  
Vol 71 (3) ◽  
pp. 367
Author(s):  
A. Al-Farga ◽  
M. Baeshen ◽  
F. M. Aqlan ◽  
A. Siddeeg ◽  
M. Afifi ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Refractive Index ◽  
Oxidative Stability ◽  
Free Fatty Acids ◽  
Iodine Value ◽  
Peroxide Value ◽  
Seed Oil ◽  
Peanut Oil ◽  
Oil Blends ◽  
Saponification Value

This study investigated the effects of blending alhydwan seed oil and peanut oil as a way of enhancing the stability and chemical characteristics of plant seed oils and to discover more innovative foods of high nutraceutical value which can be used in other food production systems. Alhydwan seed oil and peanut oil blended at proportions of 10:90, 20:80, 30:70, 40:60 and 50:50 (v/v) were evaluated according to their physi­cochemical properties, including refractive index, relative density, saponification value, peroxide value, iodine value, free fatty acids, oxidative stability index, and tocopherol contents using various standard and published methods. At room temperature, all of the oil blends were in the liquid state. The physicochemical profiles of the blended oils showed significant decreases (p < 0.05) in peroxide value (6.97–6.02 meq O2/kg oil), refractive index at 25 °C (1.462–1.446), free fatty acids (2.29–1.71%), and saponification value (186.44–183.77 mg KOH/g), and increases in iodine value and relative density at 25 °C (98.10–102.89 and 0.89–0.91, respectively), especially with an analhydwan seed oil to peanut oil ratio of 10:90. Among the fatty acids, oleic and linoleic acids were most abundant in the 50:50 and 10:90 alhydwan seed oil to peanut oil blends, respectively. Oxidative stability increased as the proportion of alhydwan oil increased. In terms of tocopherol contents (γ, δ, and α), γ-tocopherol had the highest values across all of the blended proportions, followed by δ-tocopherol. The overall acceptability was good for all blends. The incorporation of alhydwan seed oil into peanut oil resulted in inexpensive, high-quality blended oil that may be useful in health food products and pharmaceuticals without compromising sensory characteristics.

scholarly journals Effects of Extracting Solvents on the Physicochemical Properties of Alchornea cordiforlia, Hura crepitans, Irvingia gabonensis and Pycnanthus angollensis Oils

2020 ◽  
pp. 20-27
Author(s):  
Michael Akomaye Akpe ◽  
Faith Patrick Inezi
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Specific Gravity ◽  
Physicochemical Properties ◽  
Petroleum Ether ◽  
Iodine Value ◽  
Peroxide Value ◽  
Acid Value ◽  
Flash Point ◽  
Saponification Value

Aims and Objectives: To determine the effect of extracting solvents on the physicochemical properties of oils extracted from four locally available plant seeds in Nigeria namely: Alchornea cordiforlia, Hura crepitans, Irvingia gabonensis and Pycnanthus angollensis using three different solvents namely; n-Hexane, Petroleum ether and Dichloromethane. Place and Duration of Study: Department of Chemistry Laboratory, University of Calabar, Nigeria. The study was carried out between August 2019 and December 2019, (5 months). Methodology: Each plant seed was ground into a paste and extracted for its oil using a Soxhlet extractor and three different solvents namely; n-Hexane, Petroleum ether and Dichloromethane. The physicochemical properties of the oils were then analysed. Results: The results revealed the mean values of the physicochemical properties of A. cordifolia oil extracted using Hexane, Petroleum ether and Dichloromethane respectively were % yield (36.50, 34.50 and 32.00), specific gravity (0.91, 0.91 and 0.92), flash point (156.00, 155.00 and 191.00°C), Acid value (23.76, 25.10 and 26.80 mEqk-1), % free fatty acid (11.88, 12.55 and 13.40), Peroxide value (6.56, 6.38 and 6.90 mEqK-1), Saponification value (163.20, 156.40 and 165.50 mgKOHg-1) and iodine value (25.40, 48.60 and 46.50 g/100 g). The mean values of the properties of H. crepitans oil across the 3 solvents respectively were % yield (32.20, 31.50 and 29.00), specific gravity (0.92, 0.93 and 0.94), flash point (271.00, 259.00 and 240.00°C), Acid value (21.00, 21.80 and 22.20 mEqk-1), % free fatty acid (10.50, 10.90 and 11.10), Peroxide value (5.85, 6.26 and 7.10 mEqK-1), Saponification value (172.50, 190.40 and 185.60 mgKOHg-1) and Iodine value (43.60, 34.50 and 26.90 g/100 g). Properties of the I. gabonensis oil were % yield (33.20, 34.00 and 32.50), Specific gravity (0.92, 0.94 and 0.94), flash point (230.00, 236.00 and 260.00°C), Acid value (3.72, 3.70 and 3.90 mEqk-1), % free fatty acid (1.86, 1.85 and 1.95), Peroxide value (2.98, 4.26 and 3.63), Saponification value (239.50, 252.40 and 245.80) and Iodine value (25.30, 11.70 and 44.20). Mean values of P. angollensis oil properties were % yield (34.10, 36.20 and 33.00), Specific gravity (0.92, 0.92 and 0.93), flash point (260.00, 258.00 and 256.00°C), Acid value (23.68, 25.00 and 26.00 mEqk-1), % free fatty acid (11.84, 12.50 and 13.00), Peroxide value (4.25, 5.30 and 5.96), Saponification value (25.30, 52.50 and 57.30) and Iodine value (25.20, 11.68 and 44.40). The odour, colour and physical state of all the oils at room temperature was the same across the 3 solvents. Conclusion: The results indicate that the physicochemical properties of the oils vary with the extracting solvent and its polarity. Their properties revealed that some of them can be used for many domestic and industrial purposes especially for the making of paints, soap, cosmetics, lubricants and varnishes.

scholarly journals A physico-chemical study for some edible oils properties

2013 ◽  
Vol 24 (2) ◽  
pp. 121-126 ◽  
Author(s):  
Anişoara-Arleziana Neagu ◽  
Irina Niţa ◽  
Elisabeta Botez ◽  
Sibel Geaca
Keyword(s):  
Iodine Value ◽  
Peroxide Value ◽  
Corn Oil ◽  
Edible Oils ◽  
Acid Value ◽  
Chemical Study ◽  
Saponification Value ◽  
Proposed Model ◽  
C 50 ◽  
Oil Density

AbstractIn the present paper we have experimentally determined the density, saponification value, iodine value, acid value, peroxide value for four different edible oils: sunflower oil, corn oil, rapeseed oil and peanut oil. Density was determined in the temperature range of 20 °C - 50 °C, with a 10 degree step increase. The physicochemical properties of the investigated oils were within the requirements of food domain: saponification value varied from 164.84 to 206.45 mg KOH/g, peroxide value varied from 9.99 to 24.49 mEg O2/kg of sample, acid value varied from 0.22 to 3.97 mg KOH/g, iodine value varied from 94.35 to 102.02 g I2/100 g sample, and density varied from 0.9031 to 0.9208 g/cm3. Based on experimental data, density were correlated with others properties of edible oils. An empirical model was proposed to correlate oil density with iodine value and temperature. The results of the proposed model were compared with a model from literature. The accuracy of the proposed model was very good, the AAD varying in the range of 0.078 % to 0.092 %. The proposed model can be recommended for density of vegetable oils evaluation based on their IV, at different temperatures in the range of 20 °C to 50°C.

scholarly journals Evaluation of African Star Apple (Chrysophyllum albidum) Seed Oil as a Potential Feedstock for Industrial Application

2020 ◽  
pp. 31-42
Author(s):  
Otache Monday Abel ◽  
Amagbor Stella Chinelo ◽  
Inweh Cynthia ◽  
Godwin Kparobo Agbajor
Keyword(s):  
Refractive Index ◽  
Fatty Acid ◽  
Iodine Value ◽  
Seed Oil ◽  
Acid Value ◽  
Molar Ratio ◽  
Experimental Conditions ◽  
Standard Methods ◽  
Saponification Value ◽  
African Star Apple

Aims: Evaluate possible application of African Star Apple seed oil as industrial raw material geared towards possible conversion of waste to wealth with no negative impact as it borders on food scarcity. Also unveiling the possibility of a sustainable environment via the eradication of waste from the environment, thereby creating a clean environment. Place and Duration of Study: Fresh ripped fruits of African Star Apple were bought from some local market sellers at Agbarha-Otor market which is located in Ughelli North Local Government Area of Delta State, Nigeria on longitude 6° 2' 54" E /5° 30' 40" N, between November, 2019 and March, 2020. Experimental Details: Soxhlet extraction with n-hexane as solvent was used for the oil extraction of 100 g per batch of extraction. Pretreatment procedure of oil was done prior to transesterification. Homogenous base-catalyzed transesterification reaction was used in this study under controlled experimental conditions such as temperature, reaction time, methanol to oil molar ratio and catalyst type and concentration were examined under varied ranges to ascertain optimum experimental conditions for the reaction. Extracted seeds oil were analysed for its physicochemical properties using standard methods via: specific gravity, acid value, refractive index, saponification value, iodine value and free fatty acid using standard methods. Results: The results showed an oil yield of 14.9%, an indication that the seed reflects a poor source of abundant oil. Results obtained for the physiochemical properties, revealed that; specific gravity, refractive index, saponification value, acid value, free fatty acid and iodine value showed values of 0.896 kg/m3, 1.549, 231.32 mgKOH/g, 3.23 mgKOH/g, 2.07% and 47.63 mg/100 g respectively. Also, results for Methanol: Oil ratio showed that maximum yield was obtained at 6:1 molar ratio. Maximum conversion efficiency for molar concentration was achieved at 0.75% for both catalysts. While a reaction time of 125 min projected better yield. Conclusion: The seed of African star fruit are discarded as waste, therefore its use as a source of oil for industrial feedstock and other domestic application, poses no challenge with regards to food security. Its non-drying potential based on its low iodine value, makes it suitable lubricating oil for industrial application. Similarly, potential application of the oil as feedstock for the production of biodiesel is justified on the basis of its low acid value. Conclusively, the seeds may not have sufficient oil volume potential to be used as edible (domestic) and industrial oil. Consequently upon its low yield, application for biofuel production in commercial scale becomes unrealistic.

Physico-chemical Analysis of Tangashree Ghrita

2017 ◽  
Vol 2 (4) ◽  
Author(s):  
Asha F. Hosur ◽  
Mamatha K. V. ◽  
Veena B. Kupati
Keyword(s):  
Refractive Index ◽  
Chemical Analysis ◽  
Moisture Content ◽  
Iodine Value ◽  
Acid Value ◽  
Who Guidelines ◽  
Saponification Value ◽  
Physico Chemical ◽  
Chemical Studies

Quality of the drug is basic need of the era, Analytical tests are helpful to overcome the impurity or substandard of drugs. By following these tests we can ensure the qualities of drugs and promise the good result in treating the disease. Materials and methods: Physico‐chemical studies like Refractive index, Acid value, Saponification value, Iodine value and moisture content were carried out as per the WHO guidelines, Ayurvedic Pharmacopoeia and Indian Pharmacopoeia. Conclusion: Standardization tests done on Tangashri Ghrita are useful in authentication and ensuring the quality of the same.

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