Results 31 to 40 of about 4,335 (238)

Potential Heterogeneous Catalysts from Three Biogenic Residues toward Sustainable Biodiesel Production: Synthesis and Characterization

open access: yesChemistrySelect, Volume 7, Issue 48, December 27, 2022., 2022
Heterogeneous base catalysts were synthesized from the periwinkle shell, melon seed husk, and locust bean pod husk via thermal decomposition at 800°C. The catalysts were characterized by their elemental, structural, and functional compositions. The three catalysts gave appreciable biodiesel yields and good stability throughout the transesterification ...
Christopher Tunji Oloyede   +7 more
wiley   +1 more source

Adsorption of Indigo Carmine onto Chemically Activated Carbons Derived from the Cameroonian Agricultural Waste Garcinia cola Nut Shells and Desorption Studies

open access: yesJournal of Chemistry, Volume 2022, Issue 1, 2022., 2022
In the quest for a sustainable environment and clean water resources, the efficacy of activated carbons synthesized from Garcinia cola nut shells impregnated with KOH (CBK1/1) and ZnCl2 (CBZ1/1) for the adsorption of indigo carmine (IC) dye was studied using the batch technique.
Idris-Hermann Tiotsop Kuete   +6 more
wiley   +1 more source

Geographical Discrimination of Ground Amazon Cocoa by Near‐Infrared Spectroscopy: Influence of Sample Preparation

open access: yesJournal of Food Quality, Volume 2022, Issue 1, 2022., 2022
This work presents the application of the NIR technique associated with exploratory analysis of spectral data by main principal components for the discrimination of Amazon cocoa ground seeds. Cocoa samples from different geographic regions of the state of Pará, Brazil (Medicilândia, Tucumã, and Tomé‐Açu), were evaluated. The samples collected from each
Fabielle Negrão Ferreira   +6 more
wiley   +1 more source

Brazilian Biomes as Promising Resources of Rhodotorula Yeasts for the Biotechnological Production of Carotenoids. [PDF]

open access: yesChem Biodivers
ABSTRACT Yeasts belonging to the genus Rhodotorula are capable of synthesizing carotenoids, such as β‐carotene, γ‐carotene, torulene, torularodine, and astaxanthin. These carotenoids have been shown to offer health benefits to humans, such as immune system strengthening and a reduced risk of chronic degenerative diseases.
Lucas DCR, Chisté RC.
europepmc   +2 more sources

Diversity of yeasts during fermentation of cocoa from two sites in the Brazilian Amazon [PDF]

open access: yesActa Amazonica, 2019
The purpose of this study was to identify the yeasts involved in spontaneous fermentation of cocoa from the Brazilian Amazon region. The fermentation process was carried out experimentally with cocoa seeds from two sites (Medicilândia and Tucumã), State ...
Silvana de F. Oliveira de ALMEIDA   +6 more
doaj   +1 more source

A review of sustainable biodiesel production using biomass derived heterogeneous catalysts

open access: yesEngineering in Life Sciences, Volume 21, Issue 12, Page 790-824, December 2021., 2021
Abstract The production of biodiesel through chemical production processes of transesterification reaction depends on suitable catalysts to hasten the chemical reactions. Therefore, the initial selection of catalysts is critical although it is also dependent on the quantity of free fatty acids in a given sample of oil.
Semakula Maroa, Freddie Inambao
wiley   +1 more source

CULTURE MEDIA EVALUATION ON THE Leucoagaricus gongylophorus AND Escovopsis sp. FUNGI DEVELOPMENT

open access: yesRevista de Agricultura Neotropical, 2021
This study aimed to evaluate the in vitro interference of different culture media, Czapek Dox Agar, Nutrient Agar, Starch Casein agar, Malt Extract Broth Base, Nutrient Broth, and the medium containing Peptone, Malt, Agar and crushed peach palm pulp ...
Maria Lucidalva Ribeiro de Sousa   +2 more
doaj   +1 more source

Pairing colours in residential architecture for different interior types

open access: yesColor Research &Application, Volume 46, Issue 5, Page 1079-1090, October 2021., 2021
Abstract Most colour studies focus on single colour effects; however, interiors are multi‐coloured environments and contemporary users are looking for more innovative colour schemes in interiors. Interior architects rely on their own subjective experience and instincts when they take up the challenge.
Begüm Ulusoy   +2 more
wiley   +1 more source

Aplicação de baixas doses de radiação ionizante no fruto brasileiro tucumã (Astrocarium vulgare Mart.) Application of low doses of ionizing radiation in the Brazilian fruit tucumã (Astrocarium vulgare Mart.)

open access: yesActa Amazonica, 2011
O tucumã (Astrocaryum vulgare Mart.) é um fruto nativo da Amazônia, de ocorrência principal no estado do Pará, mas também encontrado nos estados do nordeste e do centro-oeste brasileiro. O tucumã é considerado como uma excelente fonte de carotenóides com
Antonio Luís dos Santos Lima   +4 more
doaj   +1 more source

Aspectos nutricionais, químicos e farmacológicos de Tucumã (Astrocaryum aculeatum Meyer e Astrocaryum vulgare Mart.) Nutritional, chemical and pharmacological aspects of Tucumã (Astrocaryum aculeatum Meyer and Astrocaryum vulgare Mart.) [PDF]

open access: yesBrazilian Journal of Development, 2022
O tucumanzeiro é uma palmeira da família Arecaceae sendo Astrocaryum aculeatum e Astrocaryum vulgare as espécies mais conhecidas e apreciadas. O fruto denominado de tucumã apresenta um significativo valor cultural e econômico. O objetivo dessa revisão foi destacar as diferentes aplicações do tucumã (A. aculeatum e A.
Luana Lopes Casas   +3 more
openaire   +1 more source

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