Ohmic Heating-Aided Mechanical Extraction of Gamma-Oryzanol and Phytosterols in Rice Bran Oil

2021 ◽  
Author(s):  
Jirapinya Sangpradab ◽  
Pitiya Kamonpatana ◽  
Prisana Suwannaporn ◽  
Tzou-Chi Huang
Keyword(s):  
Rice Bran ◽  
Rice Bran Oil ◽  
Ohmic Heating ◽  
Gamma Oryzanol ◽  
Mechanical Extraction

RESEARCH ON PREPARATION OF  GAMMA ORYZANOL ANTI-AGING CREAM

2017 ◽  
pp. 15-21
Author(s):  
Thi Minh Nguyet Le ◽  
Thi Kim Lien Phan
Keyword(s):  
Product Quality ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Aging Effect ◽  
Triterpene Alcohols ◽  
Beneficial Effects ◽  
Long Time ◽  
Formulation Parameters ◽  
Rice Water ◽  
Gamma Oryzanol

Background and Objectives: For a long time, Asian women have known to use rice water, rice bran for skin care, lightening dark spots and slowing down the aging process. Gamma Oryzanol, an ester mixture of trans-ferulic acid with phytosterols and triterpene alcohols extracted from rice bran oil, has been shown to have beneficial effects on the skin, especially its antioxidant and anti-aging effect. The aims of this research were to formulate Gamma Oryzanol-loaded anti-aging cream and to evaluate the product quality. Materials and Methods: Gamma Oryzanol was imported from Japan. Some formulation parameters such as emulsifi-ers, performance modifiers were investigated and the product quality was evaluated according to the criteria of drugs and cosmetics. Results: The excipients were chosen including 1% (w/w) of Lunamer with 3% (w/w) of Prolipid as emulsifiers and 8% (w/w) of mango seed butter as a state modifier in the formulation of Gamma Oryzanol anti-aging cream. The cream is ivory-white, thick, smooth, fragrant-smelling and satisfied all criteria of developed specification. Conclusion: The study was successful in the preparation of Gamma Oryzanol anti-aging cream. Key words: Gamma Oryzanol, anti-aging cream, Franz cells.

A Randomized, Double Blind Clinical Study to Assess the Effects of a Gamma-oryzanol-enriched Rice Bran Oil on Lipid Profile in the Hypercholesterolemic Patients

2021 ◽  
Vol 104 (Suppl. 1) ◽  
pp. S64-S69
Keyword(s):  
Risk Factor ◽  
Cholesterol Level ◽  
Rice Bran ◽  
Serum Cholesterol ◽  
Disease Risk ◽  
Rice Bran Oil ◽  
P Value ◽  
Significant Difference ◽  
Gamma Oryzanol ◽  
The Impact

Background: Hypercholesterolemia is a risk factor for developing coronary artery disease. Lifestyle modification including an intake of healthy food as well as medication have approved effect in lowering serum cholesterol. Objective: The primary objective of the present study was to determine the impact of a gamma-oryzanol-enriched rice bran oil, a product of Thailand, on serum cholesterol level. Materials and Methods: A total of in 54 hypercholesterolemic patients were divided into two groups; RBOh (20,000 ppm of gammaoryzanol, n = 27), and RBOn (5,000 ppm gamma-oryzanol, n = 27). The assigned RBO (15 ml) was intake each day for 8 weeks. Fasting serum lipids were measured at baseline and at the 4th and 8th weeks of the intervention. All patients were advised about lifestyle modifications. Results: When compared to the baseline, subjects received RBOh showed a significant difference in 2 parameters including a reduction of cholesterol level at 8th weeks (p-value = 0.0101), and decrease in LDL-C level at the end of 8th weeks (p-value = 0.0013). In the group treated with RBOn, a significant increase in HDL-C level at the end of 8th weeks (p-value = 0.0303) without any effect on total cholesterol or LDL was observed. No sign of toxic effect on liver or renal functions was seen in both treatment groups. Conclusion: RBO with gamma-oryzanol-enriched could decrease cholesterol and LDL-C level in hypercholesterolemic patients. Therefore, gamma-oryzanol-enriched RBO is a functional food that may reduce cardiovascular disease risk factor. Keywords: Hypercholesterolemia, Rice bran oil, Gamma-oryzanol, Oryza sativa

scholarly journals The Concentrations of Tocols and ^|^gamma;-Oryzanol Compounds in Rice Bran Oil Obtained by Fractional Extraction with Supercritical Carbon Dioxide

2014 ◽  
Vol 63 (1) ◽  
pp. 47-53 ◽  
Author(s):  
Sung Won Yoon ◽  
Young-Gil Pyo ◽  
Junsoo Lee ◽  
Jeom-Sig Lee ◽  
Byung Hee Kim ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Gamma Oryzanol ◽  
Supercritical Carbon

scholarly journals Degradation Kinetics of Gamma-Oryzanol in Antioxidant-Stripped Rice Bran Oil during Thermal Oxidation

2009 ◽  
Vol 58 (10) ◽  
pp. 491-497 ◽  
Author(s):  
Pramote Khuwijitjaru ◽  
Thippawan Yuenyong ◽  
Rungnaphar Pongsawatmanit ◽  
Shuji Adachi
Keyword(s):  
Thermal Oxidation ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Degradation Kinetics ◽  
Gamma Oryzanol ◽  
Kinetics Of

Rice bran stabilization and rice bran oil extraction using ohmic heating

2004 ◽  
Vol 92 (2) ◽  
pp. 157-161 ◽  
Author(s):  
N.Rao Lakkakula ◽  
Marybeth Lima ◽  
Terry Walker
Keyword(s):  
Rice Bran ◽  
Rice Bran Oil ◽  
Ohmic Heating ◽  
Oil Extraction

scholarly journals Rice Bran Oil Distillate, a Choice for Gamma-Oryzanol: Separation and Oxidative Stability Study

2014 ◽  
Vol 4 (2) ◽  
pp. 36 ◽  
Author(s):  
Swapnil G. Jaiswal ◽  
Subhalaxmi Pradhan ◽  
Madhumita Patel ◽  
Malaya Naik ◽  
Satyanarayan Naik
Keyword(s):  
Rice Bran ◽  
Crystallization Process ◽  
Rice Bran Oil ◽  
Linseed Oil ◽  
Natural Antioxidants ◽  
Stability Study ◽  
Edible Oil ◽  
Secondary Products ◽  
The Stability ◽  
Gamma Oryzanol

<p>Rice bran oil distillate is one among the secondary products produced during refining of rice bran oil. Rice bran oil distillate is a source of several micronutrients and natural antioxidants like Gamma-oryzanol, tocopherols etc. The aim of the present study was to separate Gamma-oryzanol from distillate and utilize it as a stabilizer for edible oil. In order to achieve this aim crystallization process was applied to obtain oryzanol rich concentrate. Further purification of oryzanol was achieved through column chromatography. Fractions of Gamma-oryzanol were quantified through HPLC which gives 0.83% yield. Separated Gamma-oryzanol was used to study the stability of pea nut and linseed oil using rancimat. The experiments were carried out in rancimat at varying temperature (110-130 ºC) and concentration (100-300 ppm). Stability of both the oil was found to be directly proportional to the Gamma-oryzanol concentration and inversely proportional to the temperature.</p>

Effect of Gamma-Oryzanol-Enriched Rice Bran Oil on Quality of Cryopreserved Boar Semen

2012 ◽  
Vol 74 (9) ◽  
pp. 1149-1153 ◽  
Author(s):  
Kampon KAEOKET ◽  
Sarayut DONTO ◽  
Pinatta NUALNOY ◽  
Jutarat NOIPHINIT ◽  
Panida CHANAPIWAT
Keyword(s):  
Rice Bran ◽  
Rice Bran Oil ◽  
Boar Semen ◽  
Gamma Oryzanol

scholarly journals Effect of Rice Bran Oil on the Lipid Profile of Mild-Moderate Hypercholesterolemic Male Aged 19-55 year

2017 ◽  
Vol 1 (1) ◽  
pp. 51 ◽  
Author(s):  
Noor Diah Erlinawati ◽  
Samuel Oetoro ◽  
Dwirini Retno Gunarti
Keyword(s):  
Lipid Profile ◽  
Total Cholesterol ◽  
Cholesterol Level ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Total Cholesterol Level ◽  
Cholesterol Absorption ◽  
Nutritional Therapy ◽  
Significant Difference ◽  
Gamma Oryzanol

Introduction: Adult individuals in Indonesia showed changes in diet and lack of physical activity, therefore increasing the risk of hypercholesterolemia and obesity. One of nutritional therapy for hypercholesterolemia is rice bran oil, which contains active substances that works synergistically in controlling lipid profile. The substances are gamma-orzanol, phytosterols, and vitamin E isomers (tocotrienol and tocopherol).Methods: A clinical trial was conducted for 4 weeks in City Hall of Jakarta on 20 males, age 19–55 years old, with mild-moderate hypercholesterolemia, to assess lipid profile improvement of the supplementation of rice bran oil 45 ml/days compared to 15 ml/days without changing eating patterns.Results: After 4 weeks of intervention, there was significant difference in total cholesterol level between both groups (p = 0.049). In the group that received 45 ml/days of rice bran oil, total cholesterol level decreased 14%, and in the group of 15 ml/days total cholesterol level decreased 7.8%. The reduction of LDL and triglycerides and the increase of HDL were not significantly different between both groups (p >0,05). There was no significant changes of body weight in both groups.Conclusion: This study showed that consumption of  45 ml/days rice bran oil led to better improvements in lipid profiles compare to 15 ml/days. It has been demonstrated that gamma oryzanol and plant sterols in rice bran oil have the capability to remove cholesterol from bile salt micelles, thus decreasing cholesterol absorption in intestine.

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