Pressurized hot water extraction of bioactive compounds from artichoke by-products

2018 ◽  
Vol 39 (15) ◽  
pp. 1899-1907 ◽  
Author(s):  
Imma Pagano ◽  
Anna Lisa Piccinelli ◽  
Rita Celano ◽  
Luca Campone ◽  
Patrizia Gazzerro ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Hot Water ◽  
Water Extraction ◽  
Hot Water Extraction ◽  
Pressurized Hot Water Extraction ◽  
By Products

Pressurized hot water extraction (PHWE) for the green recovery of bioactive compounds and steviol glycosides from Stevia rebaudiana Bertoni leaves

2018 ◽  
Vol 254 ◽  
pp. 150-157 ◽  
Author(s):  
Danijela Bursać Kovačević ◽  
Francisco J. Barba ◽  
Daniel Granato ◽  
Charis M. Galanakis ◽  
Zoran Herceg ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Stevia Rebaudiana ◽  
Hot Water ◽  
Water Extraction ◽  
Steviol Glycosides ◽  
Hot Water Extraction ◽  
Pressurized Hot Water Extraction ◽  
Stevia Rebaudiana Bertoni

scholarly journals Pressurized hot water extraction of hydrosable tannins from Phyllanthus tenellus Roxb.

BMC Chemistry ◽  
2019 ◽  
Vol 13 (1) ◽  
Author(s):  
Noor Hidayah Mohd Jusoh ◽  
Atiqah Subki ◽  
Swee Keong Yeap ◽  
Ken Choy Yap ◽  
Indu Bala Jaganath
Keyword(s):  
Natural Resources ◽  
Bioactive Compounds ◽  
Hot Water ◽  
Water Extraction ◽  
Absolute Methanol ◽  
Hot Water Extraction ◽  
Pressurized Hot Water Extraction ◽  
Methanol Extraction ◽  
Hydrolysable Tannins ◽  
Solvent Properties

Abstract Background Safety, environmental and economic setbacks are driving industries to find greener approaches to extract bioactive compounds from natural resources. Pressurized hot water extraction (PHWE) is among the solvent free and efficient methods for extracting bioactive compounds. Experimental In this study, the suitability of PHWE for extracting bioactive compounds such as phenolics, hydrolysable tannins and flavonoids from Phyllanthus tenellus was investigated by UPLC-qTOF-MS. Results Solvent properties of water are significantly increased through imposing temperature at 121 °C and pressure at 15 p.s.i. Pressurized hot water extraction obtained 991-folds higher hydrolysable tannins than methanol extraction. Conclusion The extraction yields of hydrolysable tannins with PHWE was almost double of absolute methanol extraction.

scholarly journals Pressurized Hot Water Extraction and Bio-Hydrogels Formulation with Aristotelia chilensis [Mol.] Stuntz Leaves

Molecules ◽  
2021 ◽  
Vol 26 (21) ◽  
pp. 6402
Author(s):  
Audrey Bianchi ◽  
Pamela R. Rivera-Tovar ◽  
Vanesa Sanz ◽  
Tania Ferreira-Anta ◽  
María Dolores Torres ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Microwave Heating ◽  
Bioactive Compounds ◽  
Phenolic Content ◽  
Hot Water ◽  
Water Extraction ◽  
Hot Water Extraction ◽  
Dry Extract ◽  
Pressurized Hot Water Extraction ◽  
Aristotelia Chilensis

Aristotelia chilensis is a plant rich in phenolics and other bioactive compounds. Their leaves are discarded as waste in the maqui berry industry. A new application of these wastes is intended by the recovery of bioactive compounds using pressurized hot water extraction with conventional or microwave heating. Both technologies have been selected for their green character regarding the type of solvent and the high efficiency in shorter operation times. Extractions were performed in the temperature range 140–200 °C with a solid/liquid ratio of 1:15 (w:w). The extracts’ total phenolic content, antioxidant capacity, and saccharides content obtained with both heating methods were measured. Additionally, the thermo-rheological properties of the gelling matrix enriched with these extracts were analyzed. Optimum conditions for lyophilized extracts were found with conventional heating, at 140 °C and 20 min extraction; 250.0 mg GAE/g dry extract and 1321.5 mg Trolox/g dry extract. Close to optimum performance was achieved with microwave heating in a fraction of the time (5 min) at 160 °C (extraction), yielding extracts with 231.9 mg GAE/g dry extract of total phenolics and antiradical capacity equivalent to 1176.3 mg Trolox/g dry extract. Slightly higher antioxidant values were identified for spray-dried extracts (between 5% for phenolic content and 2.5% for antioxidant capacity). The extracts obtained with both heating methods at 200 °C contained more than 20% oligosaccharides, primarily glucose. All the formulated gelling matrices enriched with the obtained extracts displayed intermediate gel strength properties. The tested technologies efficiently recovered highly active antioxidant extracts, rich in polyphenolics, and valuable for formulating gelling matrices with potential applicability in foods and other products.

Extraction of bioactive compounds from oyster (Crassostrea gigas) by pressurized hot water extraction

2018 ◽  
Vol 141 ◽  
pp. 120-127 ◽  
Author(s):  
Hee-Jeong Lee ◽  
Periaswamy Sivagnanam Saravana ◽  
Yong-Nam Cho ◽  
Monjurul Haq ◽  
Byung-Soo Chun
Keyword(s):  
Bioactive Compounds ◽  
Crassostrea Gigas ◽  
Hot Water ◽  
Water Extraction ◽  
Hot Water Extraction ◽  
Pressurized Hot Water Extraction

scholarly journals Simultaneous extraction of phenolics and essential oil from peppermint by pressurized hot water extraction

2018 ◽  
Vol 56 (1) ◽  
pp. 200-207 ◽  
Author(s):  
Mustafa Çam ◽  
Esma Yüksel ◽  
Hamza Alaşalvar ◽  
Bülent Başyiğit ◽  
Hülya Şen ◽  
...  
Keyword(s):  
Essential Oil ◽  
Hot Water ◽  
Water Extraction ◽  
Hot Water Extraction ◽  
Simultaneous Extraction ◽  
Pressurized Hot Water Extraction
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