Comparison of water extraction methods in Tibet based on GF-1 data

2018 ◽  
Author(s):  
Kun Shang ◽  
Lingjun Jia ◽  
Jing Liu ◽  
Zhongqing Sun
Keyword(s):  
Extraction Methods ◽  
Water Extraction

scholarly journals Polyphenolic-Protein-Polysaccharide Complexes from Hovenia dulcis: Insights into Extraction Methods on Their Physicochemical Properties and In Vitro Bioactivities

Foods ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 456 ◽  
Author(s):  
Ding-Tao Wu ◽  
Wen Liu ◽  
Mei-Lin Xian ◽  
Gang Du ◽  
Xin Liu ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Antioxidant Activities ◽  
Extraction Methods ◽  
Water Extraction ◽  
Microwave Assisted Extraction ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Ultrasound Assisted ◽  
Hovenia Dulcis

Seven extraction methods, including hot water extraction (HWE), pressurized water extraction (PWE), ultrasound-assisted extraction, microwave-assisted extraction, ultrasound-assisted enzymatic extraction, high-speed shearing homogenization extraction, and ultrasound-microwave-assisted extraction, were utilized to extract polyphenolic-protein-polysaccharide complexes (PPPs) from Hovenia dulcis. Next, their physicochemical properties and in vitro antioxidant activities, antiglycation effects, and inhibition activities on α-glucosidase and α-amylase were studied and compared. The findings from this study indicate that various extraction processes exhibit notable influences on the physicochemical properties and in vitro bioactivities of PPPs. Extraction yields, contents of polyphenolics and flavonoids, apparent viscosities, molecular weights, molar ratios of monosaccharide compositions, and ratios of amino acid compositions in PPPs varied in different extraction methods. Furthermore, 13 phenolic compounds in PPPs, including rutin, myricitrin, myricetin, quercetin, kaempferol, protocatechuic acid, gallocatechin, p-hydroxybenzoic acid, ampelopsin, quercetin-7,4′-diglucoside, dihydroquercetin, 5-methylmyricetin, and naringenin, were identified. The relatively strong in vitro antioxidant activities, antiglycation effects, and inhibition activities on α-glucosidase and α-amylase were determined in both PPP-W and PPP-P obtained by HWE and PWE, respectively. The high content of total polyphenolics may be one of the main contributors to their in vitro bioactivities. The findings have shown that the PWE method can be an appropriate method to prepare PPPs with strong bioactivities for application in the functional food industry.

scholarly journals Intercomparison of soil pore water extraction methods for stable isotope analysis

2016 ◽  
Vol 30 (19) ◽  
pp. 3434-3449 ◽  
Author(s):  
Natalie Orlowski ◽  
Dyan L. Pratt ◽  
Jeffrey J. McDonnell
Keyword(s):  
Stable Isotope ◽  
Pore Water ◽  
Stable Isotope Analysis ◽  
Isotope Analysis ◽  
Extraction Methods ◽  
Water Extraction ◽  
Soil Pore Water

Optimization of Proanthocyanidins Extraction from Bark of Local Hardwood

2018 ◽  
Vol 762 ◽  
pp. 163-168
Author(s):  
Sarmīte Janceva ◽  
Liga Lauberte ◽  
Alexandr Arshanitsa ◽  
Jegor Akishin ◽  
Tatiana Dizhbite ◽  
...  
Keyword(s):  
Alnus Glutinosa ◽  
Extraction Methods ◽  
Water Extraction ◽  
Technological Scheme ◽  
Alnus Incana ◽  
Distilled Water ◽  
Extraction Temperature ◽  
Microwave Assisted Extraction ◽  
Microwave Assisted ◽  
Assisted Extraction

Optimization of extraction conditions of the proanthocyanidins (PAC) and PAC-rich extract (PACE) from bark of alder species (Alnus incana and Alnus glutinosa) were performed varying solvents (ethanol, distilled water), extraction methods (conventional and microwave assisted extraction), extraction temperature (20–120 °C) and extraction times (5–60 minutes). The optimal extraction conditions established in the work provide 87 % PAC transition from the bark of alder species to hydrophilic extracts. On the basis of the extraction results, the technological scheme of PAC and PACE isolation from grey alder bark with focus on biorefinery was developed.

MICRONUTRIENT DETERMINATION FOR SEVERAL WATER EXTRACTION METHODS OF COIR SUBSTRATE INCUBATED WITH MINERAL FERTILIZERS

2009 ◽  
pp. 165-172
Author(s):  
M.F. Abreu ◽  
C.A. Abreu ◽  
A.M.C. Furlani ◽  
O.C. Bataglia ◽  
P.R. Furlani
Keyword(s):  
Extraction Methods ◽  
Water Extraction ◽  
Mineral Fertilizers

scholarly journals Effects of non-traditional extraction methods on extracting bioactive compounds from chaga mushroom (Inonotus obliquus) compared with hot water extraction

LWT ◽  
2019 ◽  
Vol 110 ◽  
pp. 80-84 ◽  
Author(s):  
Ah Young Hwang ◽  
Si Chang Yang ◽  
Jaecheol Kim ◽  
Taehwan Lim ◽  
Hyunnho Cho ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Extraction Methods ◽  
Hot Water ◽  
Water Extraction ◽  
Inonotus Obliquus ◽  
Hot Water Extraction
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