The Experts below are selected from a list of 2343 Experts worldwide ranked by ideXlab platform
Qixi Zhong - One of the best experts on this subject based on the ideXlab platform.
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thermal and uv stability of β carotene dissolved in Peppermint Oil microemulsified by sunflower lecithin and tween 20 blend
Food Chemistry, 2015Co-Authors: Huaiqiong Che, Qixi ZhongAbstract:Abstract Microemulsions are suitable for simultaneous delivery of flavour Oils and lipophilic bioactive compounds in transparent beverages. In the present study, the feasibility of delivering β-carotene in microemulsions formulated with Peppermint Oil and a blend of Tween® 20 and various amounts of sunflower lecithin was investigated. The poorly water- and Oil-soluble β-carotene was dissolved in the transparent microemulsions that had particles smaller than 10 nm and were stable during ambient storage for 65 d. The inclusion of β-carotene did not change the flow-behaviour and Newtonian viscosity. The degradation of β-carotene in microemulsions during ambient storage, ultraviolet radiation, and thermal treatments at 60 and 80 °C followed first order kinetics and was greatly suppressed when compared to the solution control. The antioxidant potential of Peppermint Oil and a greater content of lecithin in microemulsions enabled the better protection of β-carotene. The studied microemulsions may find various applications in manufacturing transparent beverages.
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a novel method of preparing stable zein nanoparticle dispersions for encapsulation of Peppermint Oil
Food Hydrocolloids, 2015Co-Authors: Huaiqiong Che, Qixi ZhongAbstract:Zein is a group of alcohol-soluble maize proteins and is typically dissolved in 70–80% aqueous ethanol before dispersion into water to precipitate zein as nanoparticles, which can simultaneously encapsulate various lipophilic compounds co-dissolved in aqueous ethanol. However, strategies are needed to prevent the precipitation of hydrophobic zein nanoparticles at a wide pH range and the use of flammable ethanol in the industrial production. The objective of this work was to replace ethanol with nonflammable propylene glycol to prepare zein nanoparticles and stabilize nanoparticles using gum arabic (GA). Nanoparticles smaller than 200 nm were produced using a stir plate, and GA prevented their precipitation at pH 3.0–8.0. Both electrostatic and hydrophobic interactions contributed to the adsorption of GA on zein nanoparticles, with the former being more significant at a lower pH corresponding to a higher surface load. Encapsulation of Peppermint Oil in zein nanoparticle-GA complexes did not significantly change particle dimension and dispersion stability. The gradual release of Peppermint Oil from freeze-dried samples was observed at pH 2.0–8.0, reaching complete release in a shorter time at a lower pH. The established method may enable the preparation of stable zein nanoparticles for various applications in the food industry.
Qixin Zhong - One of the best experts on this subject based on the ideXlab platform.
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microemulsions based on a sunflower lecithin tween 20 blend have high capacity for dissolving Peppermint Oil and stabilizing coenzyme q10
Journal of Agricultural and Food Chemistry, 2015Co-Authors: Huaiqiong Chen, Yongguang Guan, Qixin ZhongAbstract:The objectives of the present study were to improve the capability of microemulsions to dissolve Peppermint Oil by blending sunflower lecithin with Tween 20 and to study the possibility of codelivering lipophilic bioactive compounds. The Oil loading in microemulsions with 20% (w/w) Tween 20 increased from 3% (w/w) to 20% (w/w) upon gradual supplementation of 6% (w/w) lecithin. All microemulsions had particles of <12 nm that did not change over 70 d of storage at 21 °C. They had relatively low Newtonian viscosities and were physically and chemically stable after 50–200-fold dilution in water, resulting from similar hydrophile–lipophile-balance values of the surfactant mixture and Peppermint Oil. Furthermore, the microemulsions were capable of dissolving coenzyme Q10 and preventing its degradation at UV 302 nm, more significant for the microemulsion with lecithin. Therefore, natural surfactant lecithin can reduce the use of synthetic Tween 20 to dissolve Peppermint Oil and protect the degradation of dissolv...
Huaiqiong Che - One of the best experts on this subject based on the ideXlab platform.
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thermal and uv stability of β carotene dissolved in Peppermint Oil microemulsified by sunflower lecithin and tween 20 blend
Food Chemistry, 2015Co-Authors: Huaiqiong Che, Qixi ZhongAbstract:Abstract Microemulsions are suitable for simultaneous delivery of flavour Oils and lipophilic bioactive compounds in transparent beverages. In the present study, the feasibility of delivering β-carotene in microemulsions formulated with Peppermint Oil and a blend of Tween® 20 and various amounts of sunflower lecithin was investigated. The poorly water- and Oil-soluble β-carotene was dissolved in the transparent microemulsions that had particles smaller than 10 nm and were stable during ambient storage for 65 d. The inclusion of β-carotene did not change the flow-behaviour and Newtonian viscosity. The degradation of β-carotene in microemulsions during ambient storage, ultraviolet radiation, and thermal treatments at 60 and 80 °C followed first order kinetics and was greatly suppressed when compared to the solution control. The antioxidant potential of Peppermint Oil and a greater content of lecithin in microemulsions enabled the better protection of β-carotene. The studied microemulsions may find various applications in manufacturing transparent beverages.
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a novel method of preparing stable zein nanoparticle dispersions for encapsulation of Peppermint Oil
Food Hydrocolloids, 2015Co-Authors: Huaiqiong Che, Qixi ZhongAbstract:Zein is a group of alcohol-soluble maize proteins and is typically dissolved in 70–80% aqueous ethanol before dispersion into water to precipitate zein as nanoparticles, which can simultaneously encapsulate various lipophilic compounds co-dissolved in aqueous ethanol. However, strategies are needed to prevent the precipitation of hydrophobic zein nanoparticles at a wide pH range and the use of flammable ethanol in the industrial production. The objective of this work was to replace ethanol with nonflammable propylene glycol to prepare zein nanoparticles and stabilize nanoparticles using gum arabic (GA). Nanoparticles smaller than 200 nm were produced using a stir plate, and GA prevented their precipitation at pH 3.0–8.0. Both electrostatic and hydrophobic interactions contributed to the adsorption of GA on zein nanoparticles, with the former being more significant at a lower pH corresponding to a higher surface load. Encapsulation of Peppermint Oil in zein nanoparticle-GA complexes did not significantly change particle dimension and dispersion stability. The gradual release of Peppermint Oil from freeze-dried samples was observed at pH 2.0–8.0, reaching complete release in a shorter time at a lower pH. The established method may enable the preparation of stable zein nanoparticles for various applications in the food industry.
Robert J Shulman - One of the best experts on this subject based on the ideXlab platform.
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review article the physiological effects and safety of Peppermint Oil and its efficacy in irritable bowel syndrome and other functional disorders
Alimentary Pharmacology & Therapeutics, 2018Co-Authors: Bruno P Chumpitazi, Gregory L Kearns, Robert J ShulmanAbstract:Background Peppermint Oil has been used for centuries as a treatment for gastrointestinal ailments. It has been shown to have several effects on gastrointestinal physiology relevant to clinical care and management. Aim To review the literature on Peppermint Oil regarding its metabolism, effects on gastrointestinal physiology, clinical use and efficacy, and safety. Methods We performed a PubMed literature search using the following terms individually or in combination: Peppermint, Peppermint Oil, pharmacokinetics, menthol, oesophagus, stomach, small intestine, gallbladder, colon, transit, dyspepsia, nausea, abdominal pain, and irritable bowel syndrome. Full manuscripts evaluating Peppermint Oil that were published through 15 July 2017 were reviewed. When evaluating therapeutic indications, only randomised clinical trials were included. References from selected manuscripts were used if relevant. Results It appears that Peppermint Oil may have several mechanisms of action including: smooth muscle relaxation (via calcium channel blockade or direct enteric nervous system effects); visceral sensitivity modulation (via transient receptor potential cation channels); anti-microbial effects; anti-inflammatory activity; modulation of psychosocial distress. Peppermint Oil has been found to affect oesophageal, gastric, small bowel, gall-bladder, and colonic physiology. It has been used to facilitate completion of colonoscopy and endoscopic retrograde cholangiopancreatography. Placebo controlled studies support its use in irritable bowel syndrome, functional dyspepsia, childhood functional abdominal pain, and post-operative nausea. Few adverse effects have been reported in Peppermint Oil trials. Conclusion Peppermint Oil is a natural product which affects physiology throughout the gastrointestinal tract, has been used successfully for several clinical disorders, and appears to have a good safety profile.
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review article the physiological effects and safety of Peppermint Oil and its efficacy in irritable bowel syndrome and other functional disorders
Alimentary Pharmacology & Therapeutics, 2018Co-Authors: Bruno P Chumpitazi, Gregory L Kearns, Robert J ShulmanAbstract:Background Peppermint Oil has been used for centuries as a treatment for gastrointestinal ailments. It has been shown to have several effects on gastroesophageal physiology relevant to clinical care and management.
Huaiqiong Chen - One of the best experts on this subject based on the ideXlab platform.
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microemulsions based on a sunflower lecithin tween 20 blend have high capacity for dissolving Peppermint Oil and stabilizing coenzyme q10
Journal of Agricultural and Food Chemistry, 2015Co-Authors: Huaiqiong Chen, Yongguang Guan, Qixin ZhongAbstract:The objectives of the present study were to improve the capability of microemulsions to dissolve Peppermint Oil by blending sunflower lecithin with Tween 20 and to study the possibility of codelivering lipophilic bioactive compounds. The Oil loading in microemulsions with 20% (w/w) Tween 20 increased from 3% (w/w) to 20% (w/w) upon gradual supplementation of 6% (w/w) lecithin. All microemulsions had particles of <12 nm that did not change over 70 d of storage at 21 °C. They had relatively low Newtonian viscosities and were physically and chemically stable after 50–200-fold dilution in water, resulting from similar hydrophile–lipophile-balance values of the surfactant mixture and Peppermint Oil. Furthermore, the microemulsions were capable of dissolving coenzyme Q10 and preventing its degradation at UV 302 nm, more significant for the microemulsion with lecithin. Therefore, natural surfactant lecithin can reduce the use of synthetic Tween 20 to dissolve Peppermint Oil and protect the degradation of dissolv...