phytosterols and 5-9-12-octadecatrienoic-acid

phytosterols has been researched along with 5-9-12-octadecatrienoic-acid* in 2 studies

Other Studies

2 other study(ies) available for phytosterols and 5-9-12-octadecatrienoic-acid

Article	Year
Synthesis of phytosteryl ester containing pinolenic acid in a solvent-free system using immobilized Candida rugosa lipase. Journal of agricultural and food chemistry, 2013, Sep-18, Volume: 61, Issue:37 Phytosteryl ester synthesized with pinolenic acid (PLA) from pine nut oil is expected to have features of both phytosterol and PLA. In this study, lipase from Candida rugosa (CRL) was immobilized and then used to optimize conditions for synthesis of phytosteryl ester containing PLA. Lewatit VP OC 1600, a macroporous hydrophobic resin, was selected as the best carrier, and the optimum condition for the immobilization of CRL was established. With immobilized CRL prepared, synthesis of phytosteryl ester with fatty acid from pine nut oil was carried out. Parameters investigated were temperature, molar ratio (phytosterol to fatty acid), enzyme loading, and vacuum. Optimum conditions for synthesis of phytosteryl ester were a temperature of 60 °C, molar ratio of 1:4, enzyme loading of 10% (based on the total weight of the substrate), and pressure of 80 kPa. The maximum conversion of phytosteryl ester was ca. 93 mol % at the optimum condition. Topics: Candida; Enzymes, Immobilized; Fungal Proteins; Linolenic Acids; Lipase; Nuts; Phytosterols; Pinus; Plant Oils	2013
Enrichment of pinolenic acid at the sn-2 position of triacylglycerol molecules through lipase-catalyzed reaction. International journal of food sciences and nutrition, 2010, Volume: 61, Issue:2 Reports have shown that Delta-5 polyunsaturated fatty acids (-5 PUFA) are enriched at sn-1,3 positions of triacylglycerols (TAG) in pine (Pinus koraiensis) nut oil (Pn). As a major Delta-5 PUFA, pinolenic acid (Pi) is about 14.2% in the oil, while the percentage of Pi at the sn-1 and/or sn-3 positions in TAG was found more than 20%. In this current study, the enhancement of Pi at the sn-2 position has been achieved by acyl migration during the lipase-catalyzed inter-esterification between Pn and palm stearin (Ps). After reaction, the proportion of Pi increased at sn-2 positional fatty acid even is similar to that in total fatty acid; for example, in the inter-esterified product of 50:50 (Pn:Ps), the same amount of Pi (7.1%) present was detected both at the sn-2 and sn-1,3 positions. However, the reduction of phytosterols and tocopherols are observed in the inter-esterified products. Topics: Esterification; Linolenic Acids; Lipase; Molecular Structure; Phytosterols; Pinus; Plant Oils; Tocopherols; Triglycerides	2010

Article

Year

Synthesis of phytosteryl ester containing pinolenic acid in a solvent-free system using immobilized Candida rugosa lipase.

Journal of agricultural and food chemistry, 2013, Sep-18, Volume: 61, Issue:37

Phytosteryl ester synthesized with pinolenic acid (PLA) from pine nut oil is expected to have features of both phytosterol and PLA. In this study, lipase from Candida rugosa (CRL) was immobilized and then used to optimize conditions for synthesis of phytosteryl ester containing PLA. Lewatit VP OC 1600, a macroporous hydrophobic resin, was selected as the best carrier, and the optimum condition for the immobilization of CRL was established. With immobilized CRL prepared, synthesis of phytosteryl ester with fatty acid from pine nut oil was carried out. Parameters investigated were temperature, molar ratio (phytosterol to fatty acid), enzyme loading, and vacuum. Optimum conditions for synthesis of phytosteryl ester were a temperature of 60 °C, molar ratio of 1:4, enzyme loading of 10% (based on the total weight of the substrate), and pressure of 80 kPa. The maximum conversion of phytosteryl ester was ca. 93 mol % at the optimum condition.

Topics: Candida; Enzymes, Immobilized; Fungal Proteins; Linolenic Acids; Lipase; Nuts; Phytosterols; Pinus; Plant Oils

2013

Enrichment of pinolenic acid at the sn-2 position of triacylglycerol molecules through lipase-catalyzed reaction.

International journal of food sciences and nutrition, 2010, Volume: 61, Issue:2

Reports have shown that Delta-5 polyunsaturated fatty acids (-5 PUFA) are enriched at sn-1,3 positions of triacylglycerols (TAG) in pine (Pinus koraiensis) nut oil (Pn). As a major Delta-5 PUFA, pinolenic acid (Pi) is about 14.2% in the oil, while the percentage of Pi at the sn-1 and/or sn-3 positions in TAG was found more than 20%. In this current study, the enhancement of Pi at the sn-2 position has been achieved by acyl migration during the lipase-catalyzed inter-esterification between Pn and palm stearin (Ps). After reaction, the proportion of Pi increased at sn-2 positional fatty acid even is similar to that in total fatty acid; for example, in the inter-esterified product of 50:50 (Pn:Ps), the same amount of Pi (7.1%) present was detected both at the sn-2 and sn-1,3 positions. However, the reduction of phytosterols and tocopherols are observed in the inter-esterified products.

Topics: Esterification; Linolenic Acids; Lipase; Molecular Structure; Phytosterols; Pinus; Plant Oils; Tocopherols; Triglycerides

2010