nCombination of plant-mediated and sonochemical-assisted synthesis for preparation of low-toxic cadmium selenide semiconductor nanoparticles: Study of the effect of extraction techniques, characterization, comparative study of biological activities

2021 ◽  
pp. 101182
Author(s):  
Hamid Reza Rajabi ◽  
Zinab Moradi Alvand ◽  
Ali Mirzaei ◽  
Farideh Sajadiasl
Keyword(s):  
Comparative Study ◽  
Cadmium Selenide ◽  
Biological Activities ◽  
Semiconductor Nanoparticles ◽  
Extraction Techniques ◽  
Low Toxic

scholarly journals Extraction of Phenolic Compounds and Terpenes from Cannabis sativa L. By-Products: From Conventional to Intensified Processes

Antioxidants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 942
Author(s):  
Emilie Isidore ◽  
Hamza Karim ◽  
Irina Ioannou
Keyword(s):  
Phenolic Compounds ◽  
Cannabis Sativa ◽  
Biological Activities ◽  
Operating Conditions ◽  
Extraction Techniques ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Whole Plant ◽  
Conventional Solvent Extraction ◽  
By Products

Cannabis sativa L. is a controversial crop due to its high tetrahydrocannabinol content varieties; however, the hemp varieties get an increased interest. This paper describes (i) the main categories of phenolic compounds (flavonoids, stilbenoids and lignans) and terpenes (monoterpenes and sesquiterpenes) from C. sativa by-products and their biological activities and (ii) the main extraction techniques for their recovery. It includes not only common techniques such as conventional solvent extraction, and hydrodistillation, but also intensification and emerging techniques such as ultrasound-assisted extraction or supercritical CO2 extraction. The effect of the operating conditions on the yield and composition of these categories of phenolic compounds and terpenes was discussed. A thorough investigation of innovative extraction techniques is indeed crucial for the extraction of phenolic compounds and terpenes from cannabis toward a sustainable industrial valorization of the whole plant.

Comparative study of different extraction techniques for the analysis of virgin olive oil aroma

2007 ◽  
Vol 105 (3) ◽  
pp. 1171-1178 ◽  
Author(s):  
S VICHI ◽  
J GUADAYOL ◽  
J CAIXACH ◽  
E LOPEZTAMAMES ◽  
S BUXADERAS
Keyword(s):  
Comparative Study ◽  
Olive Oil ◽  
Virgin Olive Oil ◽  
Extraction Techniques

Comparative study on the chemical composition and biological activities of the essential oils of three Lagochilus species collected from Uzbekistan

2019 ◽  
pp. 1-5 ◽  
Author(s):  
Davlat Kh. Akramov ◽  
Gokhan Zengin ◽  
Sun Chul Kang ◽  
Komiljon Sh. Tojibaev ◽  
Mohamad Fawzi Mahomoodally ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Comparative Study ◽  
Essential Oils ◽  
Biological Activities

scholarly journals A comparative study of extraction techniques for maximum recovery of bioactive compounds from Ganoderma lucidum spores

2020 ◽  
Vol 49 (1) ◽  
Author(s):  
Diana Carolina Saavedra Plaza ◽  
Carlos Ricardo Soccol ◽  
Miguel Daniel Noseda ◽  
Valcineide Oliveira de Andrade Tanobe ◽  
Oranys Marin ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Antioxidant Activity ◽  
Comparative Study ◽  
Ganoderma Lucidum ◽  
Antioxidant Properties ◽  
Extraction Techniques ◽  
Microwave Exposure ◽  
Vis Spectroscopy ◽  
Spore Walls ◽  
Microwave Heat

This study aimed at evaluating effective methods for breaking the hard and insoluble spores of Ganoderma lucidum to recover functional biomolecules. Rupture techniques were evaluated such as manual maceration (RM), maceration with spheres of various materials (BR), and microwave exposure plus maceration with steel/chrome spheres (MBR1). Spore rupture was evaluated using UV-Vis spectroscopy, which showed vibrations of 2955, 1642, 1240, 1080 and 1746 cm-1 corresponding to changes in spore walls. The MBR1 extract contained the largest amounts of carbohydrates (19.80 mg.g-1 spores) and polyphenols (2.21 mg.g-1 spores), whereas the BR extract had higher antioxidant activity (57.22%Inb DPPH). The MBR1 and BR extracts contained 62.2 and 73.5% glucose, respectively. Both methods also involved significant extraction of carbohydrates and proteins. The best way to extract biomolecules from spore walls is to perform a microwave heat treatment and break the walls with steel/chrome spheres; this produces large quantities of carbohydrates with antioxidant properties.

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