scholarly journals A new aqueous method for recovering high quality oil and deoiled meal from pecan kernels

2021 ◽  
Author(s):  
Shuting Fu ◽  
Wenbiao Wu
Keyword(s):  
Waste Water ◽  
Solvent Extraction ◽  
Oil Recovery ◽  
Oil Content ◽  
Acid Value ◽  
Oil Extraction ◽  
High Quality ◽  
Assisted Extraction ◽  
Aqueous Method ◽  
Enzyme Assisted Extraction

The extraction of oil by a new aqueous method has been promoted because it is environmentally friendly, safe and economical of cost. A new aqueous method using 1.4:10.0 water-to-pecan kernel slurry ratio was developed, which recovered 97.73% of oils from the kernel containing 70.47% crude oil content. The method had a higher oil recovery as compared to enzyme-assisted extraction or solvent extraction or cold pressing in terms of producing oil for safe consumption. The method recovered oils with 0.47 mg KOH/g acid value and 0.34 mmol/kg peroxide value which were identical to that obtained by enzyme-assisted aqueous method and lower than that obtained by solvent extraction. The de-oiled pecan meal obtained by the new aqueous method only contained 5.14% residual oils, which was edible since no harmful chemical was added during oil extraction. No waste water was produced during the aqueous extraction of oils.

Optimization of an improved aqueous method for the production of high quality white sesame oil and de-oiled meal

2020 ◽  
Vol 71 (2) ◽  
pp. 349
Author(s):  
M. Lv ◽  
W. Wu
Keyword(s):  
Acid Value ◽  
Protein Isolate ◽  
Aqueous Salt Solution ◽  
Sesame Oil ◽  
Raw Material ◽  
National Standard ◽  
Hexane Extraction ◽  
High Quality ◽  
Aqueous Method ◽  
Protein Rich

Research into the production of white sesame oil by aqueous extraction has been promoted because of concerns about the environment, health, and cost. The advanced aqueous method using a 1.95:10 liquid-to-raw material ratio, which was finally developed in this study, recovered 96.06% white sesame oil and produced de-oiled meal with high quality (3.98% residual oil content). The acid value and peroxide value of the oil produced were quite low at 0.19 mg KOH/kg and < 3.25 mmol/kg, respectively, which were better than the values required by the Chinese national standard for first class edible sesame oils and oils produced by hexane extraction. No wastewater was discharged during the extraction of white sesame oils by an aqueous salt solution. The protein rich de-oiled meal may be a good material for making protein isolate with high purity (e.g. > 90%). It can also be a nutritious ingredient or raw material for producing many food products.

scholarly journals Proses Ekstraksi Minyak Alga Chlorella.sp menggunakan Metode Sokhletasi

2020 ◽  
Vol 5 (1) ◽  
pp. 12
Author(s):  
Yustia Wulandari Mirzayanti ◽  
Dian Yanuarita Purwaningsih ◽  
Siti Nur Faida ◽  
Nurza Istifara
Keyword(s):  
Fatty Acids ◽  
Linoleic Acid ◽  
Solvent Extraction ◽  
Oil Content ◽  
Extraction Process ◽  
Oil Extraction ◽  
Reproductive Rate ◽  
Acid Number ◽  
Extraction Time ◽  
Algae Oil

 Chlorella.sp is a type of green algae and has no flagella. One of the advantages of algae Chlorella.sp is that it has a high reproductive rate. Chlorella.sp algae is one of the algae that has oil content from its body mass. This study aims to determine the effect of the amount of solvent, extraction time on the Chlorella.sp algae oil extraction process using methanol solvent through the sokhletation method. Also, knowing the composition of fatty acids and acid numbers from algae oil Chlorella.sp. The ratio of Chlorella.sp algae: the amount of methanol solvent used are 1: 6; 1: 9 and 1:12 gr/ml. Then for the extraction time variation are 4; 4,5; 5; 5.5 and 6 hours. Chlorella.sp algae oil extraction process using sokhletation method is carried out at 70oC. The best results through the% yield and number parameters obtained by 17.98% Chlorella.sp algae oil yield ratio of 1:12 and the extraction time for 5.5 hours. Chlorella.sp algae oil has an acid number of 3.14 mg NaOH/g. Based on the results of the GC-MS test it is known that Chlorella.sp algae are dominated by linoleic acid by 55.01%area. ABSTRAKChlorella.sp merupakan jenis alga berwarna hijau dan tidak memiliki flagella. Salah satu kelebihan dari alga Chlorella.sp yaitu memiliki tingkat reproduksi yang tinggi. Alga Chlorella.sp merupakan salah satu alga yang memiliki kandungan minyak dari massa tubuhnya. Penelitian ini bertujuan untuk mengetahui pengaruh jumlah pelarut, waktu ekstraksi pada proses ekstraksi minyak alga Chlorella.sp menggunakan pelarut methanol melalui metode sokhletasi. Selain itu, mengetahui komposisi asam lemak dan bilangan asam dari minyak alga Chlorella.sp. Variasi rasio perbandingan antara alga Chlorella.sp : jumlah pelarut metanol yang digunakan yaitu 1:6; 1:9 dan 1:12 gr/ml. kemudian untuk variasi waktu ekstraksi adalah 4; 4,5; 5; 5,5 dan 6 jam. Proses ekstraksi minyak alga Chlorella.sp menggunakan metode sokhletasi dilakukan pada temperatur 70oC. Hasil terbaik melalui parameter %yield dan bilangan diperoleh sebesar 17,98% yield minyak alga Chlorella.sp dengan ratio perbandingan 1:12 dan waktu ekatraksi selama 5,5 jam. Minyak alga Chlorella.sp memiliki bilangan asam sebesar 3,14 mgNaOH/g. Berdasarkan hasil uji GC-MS diketahui bahwa untuk alga jenis Chlorella.sp didominasi oleh asam linoleat sebesar 55,01%area.

ASSESSMENT OF OIL WELL PRODUCTIVITY IN LOW-PERMEABILITY RESERVOIRS IN THE FIELDS OF EASTERN SIBERIA

2017 ◽  
pp. 30-36
Author(s):  
R. V. Urvantsev ◽  
S. E. Cheban
Keyword(s):  
Oil Recovery ◽  
Large Scale ◽  
Oil And Gas ◽  
Oil Extraction ◽  
Low Permeability ◽  
Oil Well ◽  
Eastern Siberia ◽  
Development Costs ◽  
Traditional Fields ◽  
Low Permeability Reservoirs

The 21st century witnessed the development of the oil extraction industry in Russia due to the intensifica- tion of its production at the existing traditional fields of Western Siberia, the Volga region and other oil-extracting regions, and due discovering new oil and gas provinces. At that time the path to the development of fields in Eastern Siberia was already paved. The large-scale discoveries of a number of fields made here in the 70s-80s of the 20th century are only being developed now. The process of development itself is rather slow in view of a number of reasons. Create a problem of high cost value of oil extraction in the region. One of the major tasks is obtaining the maximum oil recovery factor while reducing the development costs. The carbonate layer lying within the Katangsky suite is low-permeability, and its inventories are categorised as hard to recover. Now, the object is at a stage of trial development,which foregrounds researches on selecting the effective methods of oil extraction.

Enzyme-Assisted Extraction of Moniliformin from Extruded Corn Grits

2005 ◽  
Vol 53 (13) ◽  
pp. 5074-5078 ◽  
Author(s):  
Soo-Hyun Chung ◽  
Dojin Ryu ◽  
Eun-Kyung Kim ◽  
Lloyd B. Bullerman
Keyword(s):  
Assisted Extraction ◽  
Enzyme Assisted Extraction

Recovery of Biomolecules from Agroindustry by Solid-Liquid Enzyme-Assisted Extraction: a Review

2021 ◽  
Author(s):  
Elisa Hernández Becerra ◽  
Eduardo De Jesús Pérez López ◽  
Jhon Wilder Zartha Sossa
Keyword(s):  
Assisted Extraction ◽  
Solid Liquid ◽  
Enzyme Assisted Extraction

Recycling of Waste PET into Useful Alkyd Resin Synthesis by Microwave Irradiation and Applied in Textile Printing

2014 ◽  
Vol 18 (1) ◽  
pp. 80-88 ◽  
Author(s):  
K. Haggag ◽  
N.S. Elshemy ◽  
W. Niazy
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Microwave Irradiation ◽  
Oil Content ◽  
Acid Value ◽  
Fastness Properties ◽  
Alkyd Resins ◽  
Textile Printing ◽  
Modified Binder ◽  
Better Than

Modified alkyd resins with different amounts of vegetable oil contents (sunflower oil) and different catalysts are synthesized with the incorporation of post-consumer polyethylene terephthalate (PET) as a partial substitute for phthalic anhydride. It is found that the properties of the products obtained are directly related to the oil content. The polymerization reactions are followed by the acid value. The modified binder contains 50% oil and 10% PET in the presence of LiOH as the catalyst by using microwave irradiation. The AV value is attained in a short amount of time; it is found that the glass Transition Temperature (Tg) of the modified binder is -1.7 °C. The stiffness and roughness of the printed fabrics by using the modified binder are better than those of the commercial binder for both cotton and cotton/polyester fabrics. Moreover, it is clear that the overall fastness properties of the fabrics printed by using the modified binder in the formulation of printing pastes are higher or comparable to those that use commercial binders.

Detection of aflatoxin M1in milk, cheese and sour cream samples from Costa Rica using enzyme-assisted extraction and HPLC

2015 ◽  
Vol 8 (2) ◽  
pp. 128-135 ◽  
Author(s):  
Guadalupe Chavarría ◽  
Fabio Granados-Chinchilla ◽  
Margarita Alfaro-Cascante ◽  
Andrea Molina
Keyword(s):  
Costa Rica ◽  
Assisted Extraction ◽  
Sour Cream ◽  
Enzyme Assisted Extraction

scholarly journals Regeneration of Spent Lubricant Refining Clays by Solvent Extraction

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Yan-zhen Wang ◽  
Hai-long Xu ◽  
Li Gao ◽  
Meng-meng Yan ◽  
Hong-ling Duan ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Petroleum Ether ◽  
Oil Recovery ◽  
Oil Refining ◽  
Lubricating Oil ◽  
Polar Solvents ◽  
Base Oil ◽  
Nonpolar Solvents ◽  
Total Oil ◽  
Storage Times

Step-by-step solvent extraction was used to regenerate spent clay by recovering the adsorbed oil in lubricating oil refining clay. Several polar and nonpolar solvents were tested, and petroleum ether (90–120°C) and ethanol (95 v%) were selected as the nonpolar and polar solvents, respectively. The spent clay was first extracted using petroleum ether (90–120°C) to obtain ideal oil and then extracted with a mixed solvent of petroleum ether (90–120°C) and ethanol (95 v%) two or three times to obtain nonideal oil before being extracted with ethanol and water. Finally, the clay was dried at 130°C to obtain regenerated clay. The total oil recovery can be more than 99 wt% of the adsorbed oil. The recovered ideal oil can be used as lubricating base oil. Shorter storage times for spent clay produce better regeneration results. The regenerated clay can be reused to refine the lubricating base oils.

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