Pressurized water extraction (PWE) of terpene trilactones from Ginkgo biloba leaves

2003 ◽  
Vol 5 (4) ◽  
pp. 415 ◽  
Author(s):  
Qingyong Lang ◽  
Chien M. Wai
Keyword(s):  
Ginkgo Biloba ◽  
Water Extraction ◽  
Pressurized Water ◽  
Terpene Trilactones ◽  
Pressurized Water Extraction

scholarly journals Pressurized water extraction of β-glucan enriched fractions with bile acids-binding capacities obtained from edible mushrooms

2014 ◽  
Vol 30 (2) ◽  
pp. 391-400 ◽  
Author(s):  
Marimuthu Palanisamy ◽  
Laila Aldars-García ◽  
Alicia Gil-Ramírez ◽  
Alejandro Ruiz-Rodríguez ◽  
Francisco R. Marín ◽  
...  
Keyword(s):  
Bile Acids ◽  
Edible Mushrooms ◽  
Water Extraction ◽  
Pressurized Water ◽  
Pressurized Water Extraction

scholarly journals The Effect of Acids on Alkaloid Yield in Pressurized Water Extraction of Narcissus Pseudonarcissus

2021 ◽  
Vol 53 (6) ◽  
pp. 210608
Author(s):  
Orchidea Rachmaniah ◽  
Jaap Van Spronsen ◽  
Robert Verpoorte ◽  
Geert Jan Witkamp
Keyword(s):  
Water Extract ◽  
Soxhlet Extraction ◽  
Extraction Process ◽  
High Viscosity ◽  
Water Soluble ◽  
Water Extraction ◽  
High Yield ◽  
Pressurized Water ◽  
Narcissus Pseudonarcissus ◽  
Pressurized Water Extraction

Pressurized water (PW) extraction of galanthamine from Narcissus pseudonarcissus bulbs was performed. The obtained yield was compared with the yield from conventional acidified water extraction and methanolic Soxhlet extraction. Both PW and conventional acidified water extraction were followed by a subsequent purification step for the alkaloids. The PW extraction (70 °C, 150 bar, 45 min) yielded as much galanthamine as methanolic-Soxhlet extraction (ca. 3.50 mg/g). Meanwhile, acid-base extraction with 1% of HBr (v/v) at 65 °C for 3 h gave a lower yield (ca. 2.65 mg/g). A higher PW temperature did not significantly increase the galanthamine yield. Pressure increase is not necessary since more water-soluble compounds such as proteins and polysaccharides are co-extracted, resulting in high viscosity of the water extract solution, which hampers the filtration process. Hence, the acidity of the solution is highly important both in the case of PW extraction and acidified water extraction. Besides galanthamine, the total alkaloid profile following Narcissus alkaloids was also obtained. Lycoramine, O-methyloduline, norgalanthamine, epi-norgalanthamine, narwedine, oduline, haemanthamine, O-methyllycorenine, and a haemanthamine derivate were identified. Although a high yield was obtained from PW extraction, the further purification needs to be improved to obtain an economically feasible industrial extraction process.

Pressurized Water Extraction as a Tool for Rapid and Efficient Isolation of Proteins from Almonds

2021 ◽  
Author(s):  
Lenka Burdějová ◽  
Filip Duša ◽  
Dana Strouhalová ◽  
Dana Moravcová ◽  
Pavel Karásek
Keyword(s):  
Water Extraction ◽  
Pressurized Water ◽  
Pressurized Water Extraction

scholarly journals In vitro anti-diabetic effects and phytochemical profiling of novel varieties of Cinnamomum zeylanicum (L.) extracts

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e10070
Author(s):  
W.A. Niroshani M. Wariyapperuma ◽  
Sagarika Kannangara ◽  
Yasanandana S. Wijayasinghe ◽  
Sri Subramanium ◽  
Bimali Jayawardena
Keyword(s):  
Microwave Digestion ◽  
Alternative Therapy ◽  
Water Extraction ◽  
Total Phenolic ◽  
Cinnamomum Zeylanicum ◽  
Pressurized Water ◽  
Synthetic Drugs ◽  
Inhibitory Potential ◽  
Pressurized Water Extraction

Background Diabetes mellitus type 2 (DMT2) is a leading metabolic disorder in the world. Anti-diabetic actions of phytochemicals from various medicinal herbs have been explored as an alternative therapy in the management of DMT2 due to adverse effects of synthetic drugs used in allopathic medicine. α-amylase and α-glucosidase inhibitory potential and phytochemical profiling were investigated in aqueous extracts of two new Cinnamomum zeylanicum accessions, namely C. zeylanicum Sri Wijaya (SW), C. zeylanicum Sri Gemunu (SG) and commercially available C. zeylanicum (CC). Methods Microwave Digestion (MD), Pressurized Water Extraction (PWE), Steam Distillation (SD), Solvent Extraction (SE), Decoction Water Extraction (DWE) and Infusion Water Extraction (IWE) methods were used to prepare Cinnamon quill extracts. Total phenolic content (TPC, Folin-Ciocalteu method) and Proanthocyanidin content (PC, vanillin assay), α-amylase and α-glucosidase inhibition of Cinnamon extracts were determined spectrophotometrically. The α-amylase and α-glucosidase inhibition were reported in terms of IC50 value. The phytochemical profiling was accomplished by GC-MS technique. Results and Discussion Lowest IC50 values were observed in PWE and DWE of SW. The highest PC and TPC were also observed in PWE and DWE of SW. Pressured water and decoctions are promising methods for the extraction of antidiabetic constituents from cinnamon. Benzoic acid, cinnamyl alcohol, benzyl alcohol, and 4-Allyl-2,6-dimethoxyphenol were identified as major compounds in SW extracts. These compounds are believed to be responsible for strong enzyme inhibitory activity of the extracts. Conclusions This is the first study to explore the use of pressured and decoctions water to extract anti-diabetic phytochemicals from cinnamon. The extensive metabolite profiling of novel SW and SG extracts and comparison of that with commercially available CC are reported for the first time in this study. The C. zeylanicum, SW accession holds some promise in the management of diabetes.

Application of pressurized water extraction and spray drying techniques to produce soluble spearmint tea

2018 ◽  
Vol 12 (3) ◽  
pp. 1927-1934 ◽  
Author(s):  
Mustafa Çam ◽  
Merve Dinç Işıklı ◽  
Esma Yüksel ◽  
Hamza Alaşalvar ◽  
Bülent Başyiğit
Keyword(s):  
Spray Drying ◽  
Water Extraction ◽  
Pressurized Water ◽  
Drying Techniques ◽  
Pressurized Water Extraction
Sign in / Sign up

Export Citation Format

Share Document