scholarly journals Determination of Oil Content and Physicochemical Properties of Oil Extracted from Niger Seed Oil Grown in Gamo Gofa, Southern Ethiopia

2016 ◽  
Vol 63 ◽  
pp. 141-144
Author(s):  
Bezuayehu Getachew ◽  
Kemal Ahmed ◽  
Mahmud Endris ◽  
Manale Zebene ◽  
Tsegay Hiwot ◽  
...  
Keyword(s):  
Ethyl Acetate ◽  
Extraction Method ◽  
Oil Content ◽  
Seed Oil ◽  
Soxhlet Extraction ◽  
Extraction Methods ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Gamo Gofa ◽  
Niger Seed

The Niger seed oil was collected from gamo-gofa, southern part of Ethiopia for oil extraction. The collected seed were oven dried and crushed in to powder by mortar and pestle. A soxhlet and maceration extractions were used for extraction of the oil. The solvents used for both extractions were n-hexane and ethyl acetate. The main reason two different types of solvents and two different type of extraction methods used in this project were to check which type of solvent and extraction method were effective for extraction of oil from Niger seed. From both extraction methods the extracted oil was separated from the solvents by simple distillation. The oil content and the physico-chemical parameters of the oil were determined and an oil content of 23.45% and 21.35% were obtained by maceration and 33.02% and 22.7% by soxhlet extraction method from n-hexane and ethyl acetate respectively. The physico-chemical parameters of the seed and oil were determined and the result shows that moisture content of the seed was (8.3%) and acid value of the oil (1.7391), saponification value (6.0308), Kinematic viscosity (0.561 m2/s), Density of oil (0.9788 g/ml) and Specific gravity of (0.9947). From the result obtained we conclude that n-hexane is an effective solvent and soxhlet extraction is an effective extraction method for extraction of oil from Niger seed.

scholarly journals Physico-Chemical Properties and Oxidative Stability of Fixed Oil from Plum Seeds (Prunus domestica Linn.)

Biomolecules ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 294
Author(s):  
Ivan Savic ◽  
Ivana Savic Gajic ◽  
Dragoljub Gajic
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Ethyl Acetate ◽  
Oxidative Stability ◽  
Seed Oil ◽  
Chemical Properties ◽  
Soxhlet Extraction ◽  
Hplc Method ◽  
Physico Chemical ◽  
Β Carotene

Storage of a great amount of plum kernel waste becomes a challenge for food industry. In this work, the plum seed was used as a source of fixed oil that can be an ingredient of commercial products. Soxhlet extraction was carried out using the different solvents, such as n-hexane, n-heptane, ethyl acetate, acetone, or chloroform:methanol mixture (2:1 v/v). The highest yield of oil (about 30%) was obtained using n-heptane and n-hexane, while the lowest yield was obtained using ethyl acetate. The analysis of physico-chemical parameters indicated that all samples of plum seed oil have an exceptional quality. Schaal oven test indicated that the fixed oil of plum seed exhibited satisfactory oxidative stability at moderate storage temperatures (up to 65 °C). The composition of phenolic compounds in the oil samples was determined using HPLC method. The most abundant compound of seven identified and quantified phenolic compounds was vanillic acid. The highest content of β-carotene (1.67 mg 100 g−1 fixed oil) spectrophotometrically determined was in the oil extracted with n-hexane. The lowest content of β-carotene (1.26 mg 100 g−1 fixed oil) was determined in the oil extracted with a mixture of chloroform:methanol (2:1 v/v). This oil had the highest antioxidant activity (IC50 value of 4.35 mg mL−1) compared to other oil samples. The antioxidant activity was probably caused by the presence of phenolic compounds. The investigated physico-chemical properties demonstrated that the plum seed oil has a potential for application in the food, cosmetics, and pharmaceutical industry.

scholarly journals PENGARUH METODE EKSTRAKSI MINYAK PUPA ULAT JERMAN TERHADAP KOMPOSISI KIMIA

BUANA SAINS ◽  
2018 ◽  
Vol 18 (1) ◽  
pp. 67
Author(s):  
Erik Priyo Santoso ◽  
Farida Kusuma Astuti
Keyword(s):  
Extraction Method ◽  
Crude Protein ◽  
Dry Matter ◽  
Soxhlet Extraction ◽  
Extraction Methods ◽  
Chemistry Laboratory ◽  
Research Material ◽  
Soxhlet Method ◽  
Heat Method

The aim of this research is to know the extraction method of caterpillar pupa without detrimental to chemical composition to know the amount of pupa production of German caterpillar with two extraction methods per 100 grams of pupa To know the content of dry matter, organic matter, crude protein, crude fat, crude fiber and amino acid lysin, methionine, and vitamin E pupa oil of German caterpillar. The study was conducted from February to April 2017, at the Lab. Central University Tribhuwana Tunggadewi. Oil extraction analysis was conducted in the chemistry laboratory of Tribhuwana Tunggadewi University and chemistry laboratory of Poltek Malang. German caterpillar research material, German caterpillar pupa, pupa caterpillar germany extracted by maceration and sokletasi. German caterpillar pupa is obtained from German caterpillar breeders in Amadanom, Dampit, Malang Regency. This research uses two different extraction methods, namely cold extraction method (maseration method) and using heat method (soxhlet method). The conclusions of both research methods are known that the quantity of German caterpillar yield using soxhlet extraction method is more than the maceration extraction method. However, for the quality of the two methods it is still necessary to do further analysis to know the exact comparison of the two methods.

The Effects of Solvents and Extraction Methods on the Antioxidant Activity of P. niruri

2014 ◽  
Vol 68 (5) ◽  
Author(s):  
Hafizah Mohd Hadzri ◽  
Mohd Azizi Che Yunus ◽  
Salman Zhari ◽  
Fahim Rithwan
Keyword(s):  
Antioxidant Activity ◽  
Extraction Method ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Soxhlet Extraction ◽  
Solvent Polarity ◽  
Extraction Methods ◽  
The Other ◽  
Natural Antioxidant ◽  
Total Phenolic

The effects of different types of solvents and extraction method were investigated to determine the presence of antioxidant contents and activity from the P. niruri plant. The aim of this study is to determine which extraction method will give higher natural antioxidant contents and antioxidant activity. The content of natural antioxidant and antioxidant activity were analysed by total phenolic content (TPC), total flavonoid content (TFC) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity assay. The results showed that extracts from a supercritical fluid extraction (SFE) method without the addition of modifier showed the highest content of total phenolic (187.66 mg GAE/ g) and flavonoid (1100.93 mg QE/g) in P. niruri compared to the other methods of extraction with different type of solvents. The extract of P. niruri from different extraction methods showed antioxidant activity on DPPH radical scavenging assay. The soxhlet extraction method by methanol showed the lowest IC50 compared to the other methods of extraction. The results revealed that P. niruri extracts had different content of antioxidant and antioxidant activity. The solvent polarity and different methods of extraction play significant roles in determining the most suitable method for production of antioxidant contents and antioxidant activity from P. niruri extracts.

scholarly journals Ultrasonic Extraction of Oil fromCaesalpinia spinosa(Tara) Seeds

2016 ◽  
Vol 2016 ◽  
pp. 1-6
Author(s):  
Zhan-jun Li ◽  
Feng-jian Yang ◽  
Lei Yang ◽  
Yuan-Gang Zu
Keyword(s):  
Fatty Acid ◽  
Seed Oil ◽  
Soxhlet Extraction ◽  
Extraction Methods ◽  
Ultrasonic Extraction ◽  
Particle Sizes ◽  
Extraction Temperature ◽  
Simple Method ◽  
Alternative Means ◽  
Fatty Acid Compositions

Oil extracted from the seeds ofCaesalpinia spinosa(common name: tara) can be used in a number of applications. In the present study, tara seed oil was obtained by ultrasonic extraction. The effects of different solvents, particle sizes in the ground seed samples, extraction times, ultrasonication powers, extraction temperatures, and liquid–solid ratios on the yield of tara seed oil were investigated. The yield from the ultrasonic extraction was compared with that from traditional Soxhlet extraction. The results showed that ultrasonic extraction could be completed in a shorter time with reduced solvent consumption. The yield of tara seed oil increased with increasing ultrasonication power and extraction temperature. Gas chromatography was used to analyze the fatty acid compositions of the oils extracted by the two methods. The fatty acid compositions of the oils from both extraction methods were similar, which indicates that ultrasonic extraction is a viable alternative means of extraction. It is a rapid, efficient, and simple method for production of lipids from tara seeds.

scholarly journals Loss of seed viability in onion (Allium cepa L.) in relation to degradation of lipids during storage

2020 ◽  
Vol 12 (4) ◽  
pp. 635-640
Author(s):  
Vishwanath Rohidas Yalamalle ◽  
Nilesh Nivrutt Gaikwad ◽  
Dinesh Manohar Ithape ◽  
Ashok Kumar ◽  
Kalyani Gorrepati ◽  
...  
Keyword(s):  
Allium Cepa ◽  
Oil Content ◽  
Seed Oil ◽  
Membrane Integrity ◽  
Seed Viability ◽  
Chemical Properties ◽  
Ambient Storage ◽  
Physico Chemical ◽  
Allium Cepa L ◽  
One Year

Onion seeds have one of the lowest longevity among the cultivated crops as it loses viability within a year. The unmarketable seeds have no reported food value or feed value. Onion seeds contain considerable oil content which has potential industrial utility. The present study reports the changes in the quality of seed oil extracted from seeds stored for one year (2019-2020), after which the seeds were unmarketable due to low germination. The physico-chemical properties of seed oil were studied in four onion (Allium cepa L.) varieties (Bhima Safed, Bhima Super, Bhima Dark Red and Bhima Shakti) by standard analytical test. The per cent oil content varied from 12.94% - 16.02% and storage resulted in 0.64% loss in seed oil content. The mean seed germination in freshly harvested seeds was 80.50%, which declined to 52.33% after one year of ambient storage. The electrical conductivity, which measures the membrane integrity increased by 108.60% in one-year-old seeds. The physico-chemical properties of the seed oil deteriorated with the age of the seed. In comparison to the control, the acid values and peroxide values of the seed oil increased by 51.11% and 12.90% respectively, while saponification value decreased by 36.18%. Among the varieties, Bhima Dark Red had the highest degradation in the seed storability and vigour, which also had the highest deterioration in the lipid quality. The present study reports for the first time the degradation of seed lipids during ageing in onion which might be contributing to the poor storability of onion seeds. 

Comparison of Different Extraction Methods for Antioxidant Property of Flavonoids from Pomelo Peel

2013 ◽  
Vol 652-654 ◽  
pp. 443-448 ◽  
Author(s):  
Qiao Mei Ru ◽  
Ru Fan Cai ◽  
Jin Zhe He
Keyword(s):  
Extraction Method ◽  
Antioxidant Activities ◽  
Soxhlet Extraction ◽  
Antioxidant Property ◽  
Extraction Methods ◽  
Antioxidant Ability ◽  
Microwave Assisted ◽  
Pomelo Peel ◽  
Assisted Extraction ◽  
Different Levels

Antioxidant activity of the flavonoids from pomelo (Citrus grandis (L.) Osbeck) peel obtained by conventional soxhlet extraction (CSE), microwave-assisted extraction (MAE) and supercritical carbon dioxide (SC-CO2) extraction were investigated. For measuring antioxidant activities, different methods have been used corresponding to different levels of antioxidant action. The results indicated that the extraction yields of flavonoids by MAE and SC-CO2 extraction were higher than that by CSE method, whereas flavoniods by SC-CO2 extraction exhibited the strongest antioxidant activities. Our results indicated that SC-CO2 extraction method could effectively reserve the antioxidant ability of pomelo peel flavonoids.

scholarly journals Valorisation of Olea europaea L. Olive Leaves through the Evaluation of Their Extracts: Antioxidant and Antimicrobial Activity

Foods ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 966
Author(s):  
Mónica Sánchez-Gutiérrez ◽  
Isabel Bascón-Villegas ◽  
Alejandro Rodríguez ◽  
Fernando Pérez-Rodríguez ◽  
África Fernández-Prior ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Olea Europaea ◽  
Extraction Method ◽  
Water Extract ◽  
Soxhlet Extraction ◽  
Extraction Methods ◽  
Total Phenol Content ◽  
Olive Leaves ◽  
Olea Europaea L ◽  
Olea Europaéa

Olea europaea L. leaves constitute a source of bioactive compounds with recognized benefits for both human health and technological purposes. In the present work, different extracts from olive leaves were obtained by the application of two extraction methods, Soxhlet and microwave-assisted extraction (MAE), and six solvents (distilled water, ethanolic and glycerol mixtures solvents). MAE was applied under 40, 60 and 80 °C for 3, 6.5 and 10 min. The effect of the extraction method, solvent and treatment factors (the latter in MAE) on the total phenol content (TPC), the antioxidant activity (AA) and the phenolic profile of the extracts were all evaluated. The extracts showed high values of TPC (up to 76.1 mg GAE/g DW) and AA (up to 78 mg TE/g DW), with oleuropein being the most predominant compound in all extracts. The Soxhlet extraction method exhibited better yields in TPC than in MAE, although both methods presented comparable AA values. The water MAE extract presented the strongest antimicrobial activity against five foodborne pathogens, with minimum inhibitory concentration (MIC) values ranging from 2.5 to 60 mg/mL. MAE water extract is proposed to be exploited in the food and nutraceutical industry in the frame of a sustainable economy.

scholarly journals Selection of solvent and extraction method for determination of antimicrobial potential of Taxus wallichiana Zucc.

1970 ◽  
pp. 01-09 ◽  
Author(s):  
Priyanka Adhikari, Anita Pandey ◽  
Vasudha Agnihotri ◽  
Veena Pande
Keyword(s):  
Antimicrobial Activity ◽  
Antifungal Activity ◽  
Ethyl Acetate ◽  
Petroleum Ether ◽  
Extraction Method ◽  
Extraction Methods ◽  
Plant Parts ◽  
Antimicrobial Potential ◽  
Selection Of ◽  
Taxus Wallichiana

Antimicrobial potential of different plant parts (needle, stem and bark) of Himalayan yew (Taxus wallichiana Zucc.) has been investigated with particular reference to selection of solvents and extraction methods. Two extraction methods (maceration and soxhlet), seven solvents (methanol, ethanol, acetone, chloroform, ethyl  acetate, di chloro methane and Petroleum ether), and 3 groups of microorganisms (bacteria, actinobacteria and fungi) were considered for detection of antimicrobial activity. While qualitative estimations were done using agar well diffusion method, quantitative analysis was based on dilution method. All the plant part showed significant activity against all 3 groups of microorganisms in qualitative bioassays; maximum being in case of needles. Among solvents, ethanolic extract of needles (maceration) showed highest antibacterial activity (15.33 ± 0.25 mm). Growth of actinobacteria was inhibited maximum (22.0±0.26 mm) by the methanolic extracts of needles (maceration). Ethyl acetate extract of needles (soxhlet) showed higher antifungal activity (7.84±0.21 mm). Antibacterial and antifungal activities were higher in maceration and soxhlet methods, respectively. The most affected group among the test microorganisms was bacteria which may be due to their prokaryotic organization. This was also supported by the low minimum inhibitory concentration (MIC) values. Di chloro methane and petroleum ether did not show any antifungal activity. The antimicrobial activity of various plant parts of T. wallichiana varied with respect to the solvent as well as the extraction method. The study will have implications in selection of the use of solvent and the extraction procedure in obtaining the antimicrobial metabolites from various plant parts of T. wallichiana.

scholarly journals Exploring the Chemical Profiles and Biological Values of Two Spondias Species (S. dulcis and S. mombin): Valuable Sources of Bioactive Natural Products

Antioxidants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1771
Author(s):  
Kouadio Ibrahime Sinan ◽  
Gokhan Zengin ◽  
Dimitrina Zheleva-Dimitrova ◽  
Reneta Gevrenova ◽  
Marie Carene Nancy Picot-Allain ◽  
...  
Keyword(s):  
Ethyl Acetate ◽  
High Performance ◽  
High Resolution Mass Spectrometry ◽  
Antioxidant Properties ◽  
Soxhlet Extraction ◽  
Stem Bark ◽  
Extraction Methods ◽  
Bioactive Natural Products ◽  
Methanolic Extracts ◽  
Chemical Profiles

Spondias species have been used in traditional medicine for different human ailments. In this study, the effect of different solvents (ethyl acetate, methanol, and water) and extraction methods (infusion, maceration, and Soxhlet extraction) on the enzyme inhibitory activity against acetylcholinesterase, butyrylcholinesterase, tyrosinase, α-amylase, α-glucosidase, and antioxidant properties of S. mombin and S. dulcis leaves and stem bark were evaluated. Ultra-high-performance liquid chromatography–high resolution mass spectrometry (UHPLC-HRMS) yield in the identification and/or annotation of 98 compounds showing that the main secondary metabolites of the plant are gallic and ellagic acids and their derivatives, ellagitannins, hydroxybenzoic, hydroxycinnamic, acylquinic acids and flavonols, flavanones, and flavanonols. The leaves infusion of both Spondias species showed highest inhibition against acetylcholinesterase (AChE) (10.10 and 10.45 mg galantamine equivalent (GALAE)/g, for S. dulcis and S. mombin, respectively). The ethyl acetate extracts of the stem bark of S. mombin and S. dulcis actively inhibited α-glucosidase. Methanolic extracts of the leaves and stem bark exhibited highest tyrosinase inhibitory action. Antioxidant activity and higher levels of phenolics were observed for the methanolic extracts of Spondias. The results suggested that the Spondias species could be considered as natural phyto-therapeutic agents in medicinal and cosmeceutical applications.

scholarly journals Effect of extraction methods on physicochemical, nutritional, antinutritional, antioxidant and antimicrobial activity of Moringa (Moringa oleifera Lam.) seed kernel oil

2018 ◽  
Vol 10 (1) ◽  
pp. 287-295 ◽  
Author(s):  
B. L. Dinesha ◽  
Udaykumar Nidoni ◽  
C. T. Ramachandra ◽  
Nagaraj Naik ◽  
K.B. Sankalpa
Keyword(s):  
Moringa Oleifera ◽  
Antioxidant Activities ◽  
Soxhlet Extraction ◽  
Extraction Methods ◽  
Antimicrobial Activities ◽  
Nutritional Composition ◽  
Seed Kernel ◽  
Kernel Oil ◽  
Physico Chemical ◽  
Moringa Oleifera Lam

The effect of three different extraction methods, namely supercritical CO2, soxhlet and solvent methods on the yield, efficiency, physico-chemical properties, nutritional, anti-nutritional composition, antimicrobial and antioxidant activities of moringa (Moringa oleifera Lam.) seed kernel oil was investigated in this study. Oil extraction for SC-CO2 were 37.76 g/100g and 98.43%, observed to be higher than those of soxhlet extraction (29.12 g/100g and 76.29%), and significantly lower than solvent extraction (22.12 g/100g and 57.99%). The physico-chemical composition of the oils showed considerable variation among the extraction methods. The SC-CO2 extracted oil was found to be of superior quality, showing negligible thermal degradation and exhibited significantly (p<0.01) higher nutritional and antioxidant activity and lower anti-nutritional composition than the soxhlet and solvent extracted oils. Oils produced by SC-CO2 and soxhlet extraction methods had antimicrobial activities higher than solvent extracted oil. SCCO2 extracted oil was found to have maximum number of bioactive compounds (14 compounds) followed by solvent (8 compounds) and soxhlet (4 compounds) extracted oil. The results of the study demonstrated that SC-CO2 would be a promising process for the extraction of moringa seed kernel oil of premium quality.

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