The composition of sea buckthorn oil (Hippophac rhamnoides) from north China was analyzed by means of gas chromatography. high pressure liquid chromatography and thin layer chromatography and thin layer chromatography...The composition of sea buckthorn oil (Hippophac rhamnoides) from north China was analyzed by means of gas chromatography. high pressure liquid chromatography and thin layer chromatography and thin layer chromatography. This wild vegetable oil consisted of many unsaturated fatty acids, e.g. almitoleic acid (13.9%). oleic acid (27.9%), linoleic acid (23.2%) and linolenic acid (14.9%). α-tocopherol (105.2 mg/ 100g),β-tocopherol (8.3 mg/ 100). γ-tocopherol (52.7展开更多
Protein-stabilized nanoemulsion was successfully prepared by ultrasound-assisted method under optimal ultrasound conditions,so as to improve the defects of sea buckthorn fruit oil(SBFO)and increase its bioavailability...Protein-stabilized nanoemulsion was successfully prepared by ultrasound-assisted method under optimal ultrasound conditions,so as to improve the defects of sea buckthorn fruit oil(SBFO)and increase its bioavailability.This paper investigated the performance of nanoemulsion obtained by sodium caseinate(SC)and whey glycoprotein(WGP)at different concentrations,including polymer dispersity index(PDI),particle size,zeta potential(ZP).The SBFO nanoemulsion prepared under the optimal concentration of protein has good microstructure and rheological properties.Under different temperature(20-80℃),pH(3-9),salinity(50-200 mM)and storage time(4 weeks),the performance of SBFO nanoemulsion has been measured to prove that SBFO nanoemulsion can maintain stable state in most cases.The safety of the SBFO nanoemulsion was evaluated by cytotoxicity(MTT)method and the results showed non-toxic to normal human embryonic kidney cells(HEK 293T).展开更多
制备以白芨多糖为骨架材料的沙棘油凝胶乳,并考察其药剂学性质,以期为其进一步产业化应用奠定基础。采用新生皂法与高压均质乳化法结合制备沙棘油凝胶乳,经倒置显微镜法观察其外观形态,采用Malvern激光粒度仪测定沙棘油微粒的粒径及Zet...制备以白芨多糖为骨架材料的沙棘油凝胶乳,并考察其药剂学性质,以期为其进一步产业化应用奠定基础。采用新生皂法与高压均质乳化法结合制备沙棘油凝胶乳,经倒置显微镜法观察其外观形态,采用Malvern激光粒度仪测定沙棘油微粒的粒径及Zeta电位,采用高速离心法与不同温度贮存法评价其物理稳定性,通过测定沙棘油凝胶乳的氧化程度评价其化学稳定性。结果表明:所制得沙棘油凝胶乳为淡黄色,膏体细腻、均匀、有光泽,具有良好的保湿性与涂布性;沙棘油微粒的平均粒径约为2.911μm,表面Zeta电位为-85.3 m V;沙棘油凝胶乳在40℃条件下贮存10 d,未发生油水分层,且具有较低的氧化程度。因此,所制备的沙棘油凝胶乳具有良好的外观性状、保湿性、涂布性与稳定性,采用的方法简单,易于产业化推广。展开更多
文摘The composition of sea buckthorn oil (Hippophac rhamnoides) from north China was analyzed by means of gas chromatography. high pressure liquid chromatography and thin layer chromatography and thin layer chromatography. This wild vegetable oil consisted of many unsaturated fatty acids, e.g. almitoleic acid (13.9%). oleic acid (27.9%), linoleic acid (23.2%) and linolenic acid (14.9%). α-tocopherol (105.2 mg/ 100g),β-tocopherol (8.3 mg/ 100). γ-tocopherol (52.7
基金This work is financially supported by Science and Technology Planning Project of Guangzhou Science and Technology Bureau(No.202102080365)Science and Technology Planning Project of Guangdong Science and Technology Department(No.KTP20200170)+4 种基金Yunfu City Science and Technology Plan Project(No.2020020101)Heyuan City Science and Technology Plan Project(No.2018014)Natural Science Foundation of Guangdong Province,China(No.2018A030310477)Zhongshan Social Welfare and basic research program(No.2020B2005)Guangdong MEPP Fund(No.GDOE[2019]A27).
文摘Protein-stabilized nanoemulsion was successfully prepared by ultrasound-assisted method under optimal ultrasound conditions,so as to improve the defects of sea buckthorn fruit oil(SBFO)and increase its bioavailability.This paper investigated the performance of nanoemulsion obtained by sodium caseinate(SC)and whey glycoprotein(WGP)at different concentrations,including polymer dispersity index(PDI),particle size,zeta potential(ZP).The SBFO nanoemulsion prepared under the optimal concentration of protein has good microstructure and rheological properties.Under different temperature(20-80℃),pH(3-9),salinity(50-200 mM)and storage time(4 weeks),the performance of SBFO nanoemulsion has been measured to prove that SBFO nanoemulsion can maintain stable state in most cases.The safety of the SBFO nanoemulsion was evaluated by cytotoxicity(MTT)method and the results showed non-toxic to normal human embryonic kidney cells(HEK 293T).
文摘制备以白芨多糖为骨架材料的沙棘油凝胶乳,并考察其药剂学性质,以期为其进一步产业化应用奠定基础。采用新生皂法与高压均质乳化法结合制备沙棘油凝胶乳,经倒置显微镜法观察其外观形态,采用Malvern激光粒度仪测定沙棘油微粒的粒径及Zeta电位,采用高速离心法与不同温度贮存法评价其物理稳定性,通过测定沙棘油凝胶乳的氧化程度评价其化学稳定性。结果表明:所制得沙棘油凝胶乳为淡黄色,膏体细腻、均匀、有光泽,具有良好的保湿性与涂布性;沙棘油微粒的平均粒径约为2.911μm,表面Zeta电位为-85.3 m V;沙棘油凝胶乳在40℃条件下贮存10 d,未发生油水分层,且具有较低的氧化程度。因此,所制备的沙棘油凝胶乳具有良好的外观性状、保湿性、涂布性与稳定性,采用的方法简单,易于产业化推广。
