Results 141 to 150 of about 78,114 (297)
Levulinic acid esterification on SO3H-modified mesoporous silicas
, 2018 Ordered mesoporous SBA-15 silica and a nanosized KIL-2 material with textural mesoporosity were synthesised and modified with sulphonic groups. Functionalisation with SO3H groups was performed by a two-step procedure, in which mercapto-modified ...
Dasireddy, V +5 more
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Efficient and Simple Approaches Towards Direct Oxidative Esterification of Alcohols
, 2014 The present article describes novel oxidative protocols for direct esterification of alcohols. The protocols involve successful demonstrations of both "cross" and "self" esterification of a wide variety of alcohols.
MAITI, D +4 more
core +1 more source
Esterification and volatile compound manipulation using radiofrequency cold plasma
Esters are vital in many industries, including food; however, there are still significant opportunities to improve production efficiency, sustainability, and cost. Cold plasma was trialled as a novel tool to induce esterification.
Hessel, Volker +6 more
core +1 more source
Otimização da síntese de ésteres usados na indústria de sabores e aromas [PDF]
, 2008 TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Físicas e Matemáticas. Curso de Química.Ésteres constituem uma das classes de substâncias químicas largamente encontradas na natureza.
MEDEIROS, Camilla Rigoni
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Journal of the American Oil Chemists' Society, EarlyView.ABSTRACT Saturated fatty acids (SFAs) are generally regarded simply as being resistant to oxidation compared with unsaturated fatty acids. However, it has long been reported that SFAs can undergo oxidation when heated at high temperatures, leading to the formation of unique degradation products such as 2‐alkanones and lactones.
Kanji Aoyagi +2 more
wiley +1 more source
Journal of the American Oil Chemists' Society, EarlyView.ABSTRACT Mayonnaise, a widely consumed oil‐in‐water emulsion, is highly susceptible to lipid oxidation due to its high content of polyunsaturated fatty acids (PUFAs) and the presence of pro‐oxidant factors such as low pH and iron from egg yolk. Over the past three decades, extensive research has focused on understanding oxidation mechanisms, analytical
Sakhi Ghelichi +2 more
wiley +1 more source
Journal of Applied Polymer Science, EarlyView.Polyurethane films were prepared from andiroba (Carapa guianensis) and buriti (Mauritia flexuosa) oil‐derived polyols, emphasizing their potential as bio‐based materials. UV–Vis analysis indicates the retention of carotenoid‐related chromophoric features within the polymer matrix.
João A. P. da Silva +5 more
wiley +1 more source
The interest in biodiesel production from low cost feedstocks is still increasing. Such feedstocks usually contain large amounts of free fatty acids, which make the currently employed base catalysts inefficient, thereby promoting the use of acid ...
Brinks, Jānis +4 more
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Journal of Applied Polymer Science, EarlyView.A comparative investigation of two epoxy additives derived from cardanol (NC513 and NC514s) for production of films based on poly (lactic acid) (PLA), acetyl tributyl citrate (ATBC), and poly (butylene adipate‐co‐terephthalate) (PBAT) clarified their distinct roles, with NC513 mainly acting as a plasticizer, reducing viscosity and enhancing ductility ...
Norma Mallegni +3 more
wiley +1 more source
An esterification method for determining lipase activity.
, 2000 The choice of a lipase for an esterification reaction can be determined from the esterification reaction between butyric acid (0.16 M) and butanol (0.33 M) at 50 C and agitated with 10 mg lipase.
Kiran, K. R. +4 more
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