scholarly journals Bicomponent Fiber Extraction Process for Textile Applications

2018 ◽  
Vol 13 (1) ◽  
pp. 155892501801300
Author(s):  
Philip Mooney ◽  
John Shearer ◽  
Joey Mead ◽  
Carol Barry ◽  
Quoc Truong ◽  
...  
Keyword(s):  
Continuous Process ◽  
Extraction Process ◽  
Protective Equipment ◽  
Continuous Extraction ◽  
Bicomponent Fibers ◽  
Extraction Behavior ◽  
Fiber Extraction ◽  
Military Applications ◽  
Temperature Component ◽  
Unique Core

Tailoring surface properties is important for military applications such as uniforms, shelters, and personal protective equipment. Unique superomniphobic structures for self-cleaning textiles can be created with bi-component fibers. In this work bicomponent fibers were melt extruded using an extractable polymer as one of the two components. Using water to extract the soluble component, fibers with unique core designs were created. The extraction behavior was found to be dependent on temperature, component fraction, and residence time. A continuous extraction process was designed and evaluated for the creation of superomniphobic fibers in a continuous process.

Investigation of the Silk Fiber Extraction Process from the Vietnam Natural Bombyx Mori Silkworm Cocoon

2015 ◽  
pp. 325-328 ◽  
Author(s):  
Thu-Hien Luong ◽  
Thao-Nhi Ngoc Dang ◽  
Oanh Pham Thi Ngoc ◽  
Thanh-Ha Dinh-Thuy ◽  
Thi-Hiep Nguyen ◽  
...  
Keyword(s):  
Bombyx Mori ◽  
Extraction Process ◽  
Silk Fiber ◽  
Fiber Extraction ◽  
Silkworm Cocoon

scholarly journals Performance of Inclined Baffle Column for Pectin Continuous Extraction Process from Cocoa Peel (Theobromacacao)

2016 ◽  
Vol 58 ◽  
pp. 01019
Author(s):  
Soemargono ◽  
Sutiyono ◽  
Edi Purnomo Sasongko ◽  
Bambang Priyanto
Keyword(s):  
Extraction Process ◽  
Continuous Extraction

Metabolism of phenylalanine and biosynthesis of styrene in Penicillium camemberti

2007 ◽  
Vol 74 (2) ◽  
pp. 180-185 ◽  
Author(s):  
Yves Pagot ◽  
Jean-Marc Belin ◽  
Florence Husson ◽  
Henry-Eric Spinnler
Keyword(s):  
Food Industry ◽  
Biosynthetic Pathway ◽  
Phenylalanine Ammonia Lyase ◽  
Extraction Process ◽  
Acid Decarboxylase ◽  
Continuous Extraction ◽  
Penicillium Camemberti ◽  
Low Concentrations ◽  
Lyase Activity ◽  
Phenylalanine Ammonia Lyase Activity

The occurrence of styrene in food may be an important aroma defect (celluloid odour), even at very low concentrations (Miltz et al. 1980) causing consumer rejection and is therefore a problem for the food industry. We examined the biosynthetic pathway leading to styrene formation by Penicillium camemberti using labelled compounds. As styrene is strongly hydrophobic and volatile, we first had to develop a continuous extraction process. Using resins XAD2 it was reasonable to suspect phenylalanine (Phe) as the precursor. The addition of Phe marked with 13C on the ring provokes the accumulation of labelled styrene. The enzyme activities involved were also tentatively measured. Styrene appears to be synthesized from phenylalanine by phenylalanine ammonia-lyase activity followed by a decarboxylation catalysed by a cinnamic acid decarboxylase.

Semi-Continuous Extraction of Agarwood Oil with Subcritical Water: Optimization of Plug Flow by Response Surface Methodology

2011 ◽  
Vol 418-420 ◽  
pp. 1721-1724 ◽  
Author(s):  
Aunyarut Apibalsri ◽  
Supawan Tantayanont ◽  
Somkiet Ngamprsertsith
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Flow Rate ◽  
Subcritical Water ◽  
Maximum Yield ◽  
Plug Flow ◽  
Extraction Process ◽  
High Yield ◽  
Continuous Extraction ◽  
Agarwood Oil

A semi-continuous extraction of Agarwood oil with subcritical water (105-240 [°C], pressure 1-10 [MPa], and flow rate 1-6 [mil/min]) was evaluated and optimized by using a response surface methodology. Analysis of variance demonstrated that a quadratic regression model illustrated small synergetic effects of temperature-pressure and pressure-flow rate. The optimal conditions were temperature of 207 [°C], pressure of 3.7 [MPa] and flow rate of 5.69 [mL/min], obtaining a maximum yield of 14.99[%wt]. The product obtained from the optimal condition had high yield of oil as similar as conventional extraction process while consuming dramatically shorten extraction time. This process could be considered as an innovative extraction of Agarwood oil.

scholarly journals The Phytochemical Screening and Antioxidants Potential of Schoenoplectus triqueter L. Palla

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Amir Hassan ◽  
Zakaria Akmal ◽  
Nawaz Khan
Keyword(s):  
Ethyl Acetate ◽  
Inhibitory Concentration ◽  
Ethyl Acetate Extract ◽  
Biological Activities ◽  
Continuous Process ◽  
Extraction Process ◽  
Dilution Method ◽  
Successive Extraction ◽  
Different Types ◽  
Phytochemical Constituents

Over the centuries, humans use different types of therapeutic plants to treat several diseases. Cyperaceae family has a significant number of monocotyledon plants, and Schoenoplectus is one of the genera that belong to this family; about forty-nine compounds are isolated. Our current study was evaluated on Schoenoplectus triqueter L. Palla to show the potential of its antioxidants and confirm the phytochemical constituents in this plant species. Fully powdered plant taken for successive extraction process in hot continuous process for Soxhlet was 20 g plant in porous bag manually prepared; the constant temperature provided was 40–50°C. In the maceration extraction method, 30 g plant was taken in a closed jar and the solvent placed for extraction was 300 mL of ethanol; the extract gets filtered and fractioned to different solvents such as water, dichloromethane, ethyl acetate, and n-hexane fraction. Important types of phytochemicals found in this species are alkaloids, proteins, amino acids, flavonoids, phenols, terpenoids, tannins, saponins, and carbohydrates. All the entire extracted fractions which are water, dichloromethane, ethyl acetate, and n-hexane possess noticeable activity at various concentrations of 31.25, 62.5, 125, 250, and 500 µg/mL by the dilution method. The ethyl acetate extract holds greater median inhibitory concentration (IC50 = 3.52 ± 0.01), and water showed IC50 = 3.61 ± 0.01 percent potential as compared to the standard ascorbic acid which possesses IC50 = 2.27 ± 0.01. Their potential may be enhanced or lowered with the purification of extracts which might be useful in biological activities.

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