Results 51 to 60 of about 4,443 (118)

Synthesis and Theoretical Study of Molecularly Imprinted Nanospheres for Recognition of Tocopherols

Molecules, 2009
Molecular imprinting is a technology that facilitates the production of artificial receptors toward compounds of interest. The molecularly imprinted polymers act as artificial antibodies, artificial receptors, or artificial enzymes with the added benefit
Chartchalerm Isarankura-Na-Ayudhya, Supanee Maneewas, Tippawan Pissawong, Charoenchai Puttipanyalears, Thummaruk Suksrichavalit, Chanin Nantasenamat, Theeraphon Piacham, Virapong Prachayasittikul   +7 more
doaj   +1 more source

High Pressure Extraction as a Green Alternative to the Conventional Sunflower Oil (Helianthus annuus) Production Process – Extraction with Pressurized Ethanol in an Intermittent Process and with Supercritical Fluid

Global Challenges
This research explores green‐technology alternatives to extract vegetable oils as alternatives to hexane, a non‐renewable solvent, focussing on sunflower oil. It compares pressurized liquid extraction (PLE) with ethanol and supercritical fluid extraction
Carolina Medeiros Vicentini‐Polette, Beatriz Satie Yamada, Paulo Rodolfo Ramos, Marta Gomes da Silva, Alessandra Lopes de Oliveira   +4 more
doaj   +1 more source

Application of the accelerated test Rancimat to evaluate oxidative stability of dried microencapsulated oils

Grasas y Aceites, 2000
The objective of this work was to apply the oxidative test Rancimat to dried microencapsulated oils (DMO), with special emphasis on assessing the efficacy of natural antioxidants.
J. Velasco, M. C. Dobarganes, G. Márquez-Ruiz   +2 more
doaj   +1 more source

Nutraceutical Properties of Pecan Kernels Are Affected by Soil Zinc Fertilizer Application

HortScience, 2020
Pecan (Carya illinoinensis) has high kernel antioxidant activity and unsaturated fatty acid content, which contribute to its nutraceutical properties. In the western United States, where soils are typically alkaline, pecan trees require frequent zinc (Zn)
Yuqing Wang, Richard J. Heerema , James L. Walworth, Barry Dungan, Dawn VanLeeuwen, F. Omar Holguin   +5 more
doaj   +1 more source

ANALYSE QUANTITATIVE PAR FLUORESCENCE DE VITAMINE E DANS LES FORMULES PHARMACEUTIQUES

Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2011
Many applications of this technique are encountered in the determination of organic compounds or molecules of biological importance, such as thiamin, riboflavin, adrenalin, cholesterol, paraffins or certain medications and drugs.
Alexandru Stoica, Mihaela F. Maria, Mihaela Ilie, Ana M. Hossu   +3 more
doaj  

Carbosilane Dendritic Amphiphiles from Cholesterol or Vitamin E for Micelle Formation

Pharmaceutics
Cationic dendritic amphiphiles were prepared through the linkage of interesting hydrophobic molecules such as cholesterol or vitamin E to the focal point of carbosilane dendrons.
Gabriel Mencia, Sergio Algar, Tania Lozano-Cruz, Mª Ángeles Muñoz-Fernández, Elizabeth R. Gillies, Jesús Cano, Mercedes Valiente, Rafael Gómez   +7 more
doaj   +1 more source

Antioxidant Activity of Planar Catechin Conjugated with Trolox

Antioxidants
Planar catechin (PCat), a natural antioxidant with a fixed 3D catechin structure on a plane, exhibits radical-scavenging activity approximately five times stronger than the conventional catechin.
Wakana Shimizu, Yoshimi Shoji, Kei Ohkubo, Hiromu Ito, Ikuo Nakanishi, Kiyoshi Fukuhara   +5 more
doaj   +1 more source

Lipoxygenase LOX3 Is the Enigmatic Tocopherol Oxidase in Runner Bean (Phaseolus coccineus)

Antioxidants
Purification of extracts from the etiolated seedlings of runner bean (Phaseolus coccineus), coupled with mass spectrometry analysis of proteins revealed that the enzyme responsible for tocopherol oxidation activity is lipoxygenase, an enzyme known for ...
Jerzy Kruk, Paweł Jedynak, Sylwia Kędracka-Krok, Renata Szymańska, Michał Gabruk   +4 more
doaj   +1 more source

Optimization of Green Ultrasound-Assisted Extraction of Carotenoids and Tocopherol from Tomato Waste Using NADESs

Molecules
The purpose of this study was to extract the lipophilic fraction from one of the largest source of waste in the industrial sector, namely, the tomato residue from processing the fruit.
Georgiana Ileana Badea, Florentina Gatea, Simona Carmen Litescu-Filipescu, Andreia Alecu, Ana Chira, Celina Maria Damian, Gabriel Lucian Radu   +6 more
doaj   +1 more source

Nondestructive Determination of Tocopherol and Tocotrienol in Vitamin E Powder Using Near- and Mid-Infrared Spectroscopy

Foods
Vitamin E is an essential nutrient, but its poor water solubility limits food and pharmaceutical applications. The usability of vitamin E can be enhanced via modification methods such as encapsulation, which transforms the physical state of vitamin E ...
Saowaluk Rungchang, Sila Kittiwachana, Sujitra Funsueb, Chitsiri Rachtanapun, Juthamas Tantala, Phumon Sookwong, Laichheang Yort, Chayanid Sringarm, Sudarat Jiamyangyuen   +8 more
doaj   +1 more source