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Almond Oil

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Vanya Márcia Duarte Pasa – One of the best experts on this subject based on the ideXlab platform.

  • Synthesis and characterization of esters from different alcohols using Macauba Almond Oil to substitute diesel Oil and jet fuel
    Fuel, 2016
    Co-Authors: Larissa Noemi Silva, Claudia Cristina Cardoso, Vanya Márcia Duarte Pasa

    Abstract:

    Macauba is a still little investigated and exploited palmaceae native to South America with a high Oil yield (6200 kg/ha). Its Almond Oil is rich in lauric acid and presents low acidity. In this study, we carried out the transesterification of crude Macauba Almond Oil over homogeneous catalysts using methanol, ethanol, isopropanol and isobutanol. Its products were characterized by 1H NMR, kinematic viscosity, density, lubricity and cold performance through DSC analysis and cold filter plugging point. A worse conversion to monoesters was obtained over the isopropyl route, while high conversions were observed with ethanol if compared with methanol. Also, winterization of the ethanolysis product was conducted and the crystallization temperatures of the synthesized biofuels and blends with fossil diesel or jet fuel were evaluated. The results indicate the feasibility of replacing conventional commercial biodiesel with those proposed in this work as they exhibit possible performance gains. However, the preliminary results indicate that only small proportions could fit the biojet fuel performance specifications at low temperatures.

Yang Hai-yan – One of the best experts on this subject based on the ideXlab platform.

  • Study on enrichment of polyunsaturated fatty acids in sweet Almond Oil by molecular distillation
    Science and Technology of Food Industry, 2012
    Co-Authors: Yang Hai-yan

    Abstract:

    The enrichment conditions of polyunsaturated acids from sweet Almond Oil by molecular distillation was researched.After ethyl esterified,the main factors,including distillation temperature,scraper speed,feed rate and operating pressure,influenced the result of molecular distillation were analyzed by single factor tests.Based on the result of single factor tests,Box-Behnken response surface was designed to optimize the distillation parameters combined with the equipment,the optimum parameters were:distillation temperature 109℃,the scraper speed 350r/min,operating pressure 3Pa,in this condition,the content of polyunsaturated fatty acids was 93.883%.The result indicated that the enrichment of polyunsaturated fatty acids in sweet Almond Oil by molecular distillation was feasible.

  • Studies on the Effcet of Pretreatment Techniques on Extraction Rate of Extracting Sweet Almond Oil by Enzymatic Hydrolysis Methods
    Journal of Xinjiang Agricultural University, 2012
    Co-Authors: Yang Hai-yan

    Abstract:

    Sweet Almond contains high Oil,in order to improve its extraction rate,the response surface method was used in the pretreatment optimizing the enzymatic hydrolys methods of sweet Almond Oil.Based on the single factor experiment,the response surface optimization experiment was designed with the Design-Expert 7.1.6 Trial.The results showed that the pretreatment process could obviously improve the sweet Almond Oil extraction rate,the temperature of the optimum process parameter were 52.68 ℃,the heating treatment time was 17.9 min,the breaking sweet Almond time was 7 min,under this condition the enzymatic extraction ratio of sweet Almond Oil was up to 55.44%.

  • Analysis of Fatty Acid in Almond Oil and Preparation of Soft Capsule
    Storage and Process, 2011
    Co-Authors: Yang Hai-yan

    Abstract:

    In this paper,the composition of fatty acid of Almond Oil was analyzed by gas chromatography.The results indicated that,Almond Oil contained plenty of the unsaturated fatty acid.The unsaturated fatty acid content achieved 96.68%,was suitable for the preparation of Almond Oil soft capsule with nutrition and health function.At the same time,the critical technology in the production process of Almond Oil soft capsule was studied,including capsule shell prescription and disintegration of soft capsule.The results showed that: for the capsule shell prescription,the optimum ratio of water,gelatin and glycerin is 1∶1∶0.5.Disintegration times were 10 min,9 min and 12 min respectively,and compliance with the provisions of Pharmacopoeia of China.

Rui Zhang – One of the best experts on this subject based on the ideXlab platform.

  • An Improved Method for Determination of Cyanide Content in Bitter Almond Oil.
    Journal of Oleo Science, 2018
    Co-Authors: Jia Chen, Lei Liu, Rui Zhang

    Abstract:

    An improved colorimetric method for determination of cyanide content in bitter Almond Oil was developed. The optimal determination parameters were as follows: volume ratio of hydrochloric acid to bitter Almond Oil (v/v), 1.5:1; holding time for hydrolysis, 120 min; and volume ratio of distillation solution to bitter Almond Oil (v/v), 8:1. Analytical results showed that the relative standard deviations (SDs) of determinations were less than 10%, which satisfies the test requirements. The results of high-performance liquid chromatography and measurements exhibited a significant correlation (R = 0.9888, SD = 0.2015). Therefore, the improved colorimetric method can be used to determine cyanide content in bitter Almond Oil.

  • efficient salt aided aqueous extraction of bitter Almond Oil
    Journal of the Science of Food and Agriculture, 2017
    Co-Authors: Lei Liu, Zhong Zhao, Rui Zhang

    Abstract:

    Salt-aided aqueous extraction (SAAE) is an inexpensive and environmentally friendly method of Oil extraction that is influenced by many factors. In the present study, we investigated the effect of SAAE on bitter Almond Oil yield.; Results: This study used sodium bicarbonate solution as extraction solvent and the optimal extraction parameters predicted by Box-Behnken design (i.e., concentration of sodium bicarbonate, 0.4 mol L-1 ; solvent-to-sample ratio, 5:1; extraction temperature, 84 °C; extraction time, 60 min), for Oil recovery of 90.9%. The physiochemical characteristics of the extracted Oil suggest that the quality was similar to that of the aqueous enzymatic extracted Oil. Moreover, the content of hydrocyanic acid (HCN) in bitter Almond Oil was found to be less than 5 mg kg-1 , which was lower compared to that obtained by other reported methods. Results of microanalysis indicated that SAAE led to significant improvement in Oil yield by allowing the release of Oil and decreasing the emulsion fraction. Therefore, extraction of bitter Almond Oil by SAAE is feasible.; Conclusion: These results demonstrate that extraction of bitter Almond Oil by SAAE based on the salt effect is feasible on a laboratory scale. © 2017 Society of Chemical Industry.; © 2017 Society of Chemical Industry.

  • Efficient salt‐aided aqueous extraction of bitter Almond Oil
    Journal of the Science of Food and Agriculture, 2017
    Co-Authors: Lei Liu, Zhong Zhao, Rui Zhang

    Abstract:

    Salt-aided aqueous extraction (SAAE) is an inexpensive and environmentally friendly method of Oil extraction that is influenced by many factors. In the present study, we investigated the effect of SAAE on bitter Almond Oil yield.; Results: This study used sodium bicarbonate solution as extraction solvent and the optimal extraction parameters predicted by Box-Behnken design (i.e., concentration of sodium bicarbonate, 0.4 mol L-1 ; solvent-to-sample ratio, 5:1; extraction temperature, 84 °C; extraction time, 60 min), for Oil recovery of 90.9%. The physiochemical characteristics of the extracted Oil suggest that the quality was similar to that of the aqueous enzymatic extracted Oil. Moreover, the content of hydrocyanic acid (HCN) in bitter Almond Oil was found to be less than 5 mg kg-1 , which was lower compared to that obtained by other reported methods. Results of microanalysis indicated that SAAE led to significant improvement in Oil yield by allowing the release of Oil and decreasing the emulsion fraction. Therefore, extraction of bitter Almond Oil by SAAE is feasible.; Conclusion: These results demonstrate that extraction of bitter Almond Oil by SAAE based on the salt effect is feasible on a laboratory scale. © 2017 Society of Chemical Industry.; © 2017 Society of Chemical Industry.