Saponification
Mostrando 13-24 de 73 artigos, teses e dissertações.
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13. CARACTERÍSTICAS FISICOQUÍMICAS DE LA GRASA DE SEMILLA DE VEINTE CULTIVARES DE MANGO (Mangifera indica L.) EN COLOMBIA
ABSTRACT In the present investigation was evaluated yield extraction and some physicochemical properties of seed fat for 20 mango (Mangifera Indica L.) cultivars in Colombia. Seeds of mature fruit were processed in flour and were obtained the following composition: fat 6.73 % - 11.8 %, protein 4.3 % - 6.9 %, raw fiber 2.6 % - 6.1 % and ash 2.12 % - 3.9 %. T
Rev. Bras. Frutic.. Publicado em: 2016-02
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14. ANÁLISE COMPARATIVA DO CONTEÚDO EM ESTEROIDES LIVRES DE DIFERENTES ÓLEOS, GORDURAS E BIODIESEIS POR CROMATOGRAFIA GASOSA
In this study, the percentage content of free steroid in oils, fats and biodiesel was analyzed. For this, the saponification reaction on a microscale was used, and this procedure for extraction of unsaponifiable fraction was studied in several experimental steps. After the process of saponification, the unsaponifiable fraction was analyzed by gas chromatogra
Quím. Nova. Publicado em: 2015-05
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15. Characterization of a hydrolyzed oil obtained from fish waste for nutraceutical application
The fish industry generates high volume of waste from fish oil that can have the extraction of its lipids used as nutraceuticals and foods. The objective of this study was to produce unsaturated fatty acids from industrialized fish oil by means of a differentiated hydrolysis process. The samples used were crude fish oil obtained from Campestre industry and c
Food Sci. Technol. Publicado em: 2015-04
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16. Influence of harvest year in the physicochemical properties and antioxidant activity of flaxseed hull oils from Tunisia
The objective of this research was to determine the effect of five years on physico-chemical characteristics and antioxidant activity of flaxseed hull oils. Oil and protein on flaxseed hull varied between 20.15 and 22.56 and 17.45 and 19.14, respectively. The albumin fraction dominated the seed hull protein composition (44 - 47%). Flaxseed hull oils showed s
Food Sci. Technol. Publicado em: 2015-03
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17. Caracterização físico-química de resíduos oleosos do saneamento e dos óleos e graxas extraídos visando a conversão em biocombustíveis
Oily waste from sanitation processes was characterized for its potential use in the generation of biofuels. The waste residues studied showed high levels of oil and grease, reaching up to 87% (m/m) in a grease trap of a food company, showing that these residues can be utilized for the production of biofuels. The results revealed high levels of moisture and s
Quím. Nova. Publicado em: 2014
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18. Extração e caracterização de óleos de resíduos de peixes de água doce / Extraction and characterization of freshwater fish waste oils
This study aimed to: (1) evaluate the performance and physicochemical characteristics of viscera oils from rainbow trout (Oncorhynchus mykiss), pacu (Piaractus mesopotamicus) and curimbatá (Prochilodus spp.) extracted by slow freezing, as a mechanism to release the lipids of the crude material, and (2) compare the stages of chemical refining (degumming, neu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/04/2012
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19. Efeitos dos parâmetros da extração e avaliação da qualidade física e química dos óleos de baru e amendoim / Effects of parameter extraction and quality assessment ofphysics and chemistry of baru and peanut oil
This work aimed to optimize the extraction of baru oil (Dipteryx alata Vog.) by continuous mechanical pressing and assess its quality compared to peanut oil extracted under the same conditions, since both have similar characteristics. The characterization of fruit and baru almonds from southern state of Goiás was carried out, determining their chemical comp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/02/2012
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20. Influência da saponificação na determinação de carotenoides em maracujás do cerrado
This work describes the evaluation of the effect of saponification process in the carotenoid's content of three species of passion fruit. The results indicated the saponification of the extract was necessary to obtain cis-violaxanthin, trans-violaxanthin and β-cryptoxanthin hydrolyzed. These compounds were found in fruits of commercial P. edulis and yellow
Química Nova. Publicado em: 2012
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21. Teores de B-Caroteno e A-tocoferol presentes na microalga Spirulina (Arthrospira) Platensis cultivada com diferentes fotoperÃodos / Levels of B-carotene and-tocopherol present in the Spirulina (Arthrospira) grown in different photoperiods Platensis
The microalga cyanophyceae Spirulina platensis has been commercialized and studied due to its high nutritional value. It has shown to be a rich source of a great variety of vitamins, minerals, proteins, polyunsaturated fatty acids, carotenoids, phycobilins, and polysaccharides that exhibit potential therapeutic properties. The aim of the present work was to
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/08/2010
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22. ProduÃÃo de Ãcidos Graxos Assistida por Ultrassom Visando à ProduÃÃo de Biodiesel / Production of Fatty Acids Carried out by Ultrasound Aiming the Production of Biodiesel
A produÃÃo de biodiesel por reaÃÃo de transesterificaÃÃo à realizada geralmente usando Ãleos com baixo Ãndice de acidez, restringindo o mÃtodo ao uso de uma pequena variedade de Ãleos vegetais. MatÃrias primas com elevado Ãndice de acidez podem ser utilizadas como rota alternativa para a produÃÃo de biodiesel. O objetivo desta dissertaÃÃo fo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2010
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23. Síntese de biodiesel etílico de girassol utilizando transesterificação alcalina seguido da adição on pot de H2SO4 / Biodiesel synthesis from sunflower oil through alkaline transesterification followed on pot addition of sulfuric acid
In this study, the on pot addition of sulfuric acid was studied in the transesterification process of sunflower oil, using ethanol and methanol, by basic catalysis (NaOH or KOH). That addition implicated in successfully separation of FAEEs from FAMEs/glycerin phases due to soap breaking. The on pot additions yield free fatty acids and salt (Na2SO4 or K2SO4).
Publicado em: 2010
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24. Processo simplificado para a produção de concentrado de acidos graxos de cadeia longa (D-003) a partir da cera de cana-de-açucar (Saccharum officinarum L.) / Simplified process to production of concentrated long chain fatty acids from sugar cane wax (Saccharum officinarum L.)
The sugar cane (Saccharum officinarum L.) wax obtained from filter cake, a byproduct of the sugar and alcohol industries, has attracted great interest due to the large potential for application in various industrial sectors, including the pharmaceutical industry. Brazil is the largest sugar cane producer and sugar exporting country in the world, making it a
Publicado em: 2010