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Hasil Pencarian

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Noor Diah Erlinawati
Abstrak :
[ABSTRAK
Latar belakang. Individu dewasa di masyarakat menunjukkan perubahan pola makan dan kurang aktivitas sehingga berisiko untuk menderita hiperkolesterolemia dan obesitas. Hiperkolesterolemia dapat diatasi dengan terapi nutrisi. Minyak bekatul mengandung zat aktif yang bekerja secara sinergis dan telah terbukti dari penelitian sebelumnya berperan dalam pengendalian lipid yaitu gamma-oryzanol, fitosterol, dan derivat vitamin E (tokotrienol dan tokoferol). Penelitian ini bertujuan untuk menilai perbaikan profil lipid pada pemberian minyak bekatul dengan jumlah yang berbeda tanpa merubah pola makan subyek. Metode. Uji klinis, desain paralel, alokasi acak selama 4 minggu pada laki-laki usia 19-55 tahun, kolesterol total 200-300 mg/dl, dan IMT 20-30 kg/m2. Subyek diambil secara konsekutif dan dibagi menjadi kelompok 45 ml/hari dan kelompok 15 ml/hari minyak bekatul. Sebelum perlakuan dilakukan wawancara data demografi, aktifitas fisik dan pemeriksaan antropometri. Asupan makan dinilai sebelum dan setelah perlakuan. Pemeriksaan laboratorium profil lipid dilakukan sebelum dan setelah perlakuan 4 minggu. Hasil. Dari total 20 subyek (10 subyek kelompok 45 ml/hari dan 10 subyek kelompok 15 ml/hari) didapatkan karakteristik yang setara antara kedua kelompok menurut usia, tingkat pendidikan, status gizi, aktivitas fisik, kebiasaan merokok, riwayat hiperkolesterolemia keluarga, antropometri dan profil lipid. Asupan makanan meliputi asupan energi, karbohidrat, protein, lemak dan serat sebelum perlakuan tidak berbeda bermakna antara kelompok. Asupan lemak setelah perlakuan berbeda bermakna antara kedua kelompok dikarenakan perbedaan pemberian jumlah minyak. Setelah perlakuan selama 4 minggu, didapatkan penurunan kolesterol total secara statistik berbeda bermakna antara kedua kelompok (p=0,049). Pada kelompok 45 ml/hari kadar kolesterol total turun sebanyak 14% dan pada kelompok 15 ml/hari terjadi penurunan kadar kolesterol total 7,8%. Penurunan LDL dan trigliserida serta peningkatan HDL secara statistik tidak berbeda bermakna antara dua kelompok (p >0,05). Pada penelitian ini tidak terjadi perubahan berat badan yang bermakna pada kedua kelompok. Kesimpulan. Konsumsi minyak bekatul 45 ml/hari menyebabkan perbaikan profil lipid yang lebih baik dibandingkan konsumsi minyak bekatul 15 ml.hari.
ABSTRACT
Background. Adult individuals in Indonesian society showed changes in diet pattern and lack of physical activity that increasing risk for hypercholesterolemia and obesity. Hypercholesterolemia would be treated with nutritional therapy. Rice bran oil contains active substances (gamma-oryzanol, phytosterols, and derivatives of vitamin E (tocotrienols and tocopherols) that work in synergy and have been proven on previous research controlling lipid profil. This study aimed to assess the lipid profile improvement in intake of rice bran oil with different amounts without changing the eating patterns of the subjects. Methods. It was parallel and randomized clinical trial for 4 weeks in male with 19-55 years of age, total cholesterol level 200-300 mg/dl, and BMI of 20−30 kg/m2. All subjects were recruited consecutively and classified into two groups that received 45 ml/day or 15 ml/day rice bran oil for 4 weeks. The demographic data interviews, physical activity and anthropometric examination were taken before intervention. Food intake were assessed before and after intervention. Laboratory test of lipid profile performed before and after 4 weeks of treatment. Results. A total of 20 subjects consisting of 10 subjects with 45 ml/day rice bran oil and 10 subjects with 15 ml/day had obtained similar characteristics in age, education level, nutritional status, physical activity, smoking, family history of hypercholesterolemia, BMI and lipid profiles. Food intake includes intake of energy, carbohydrate, protein, fat and fiber before treatment did not significantly difference between two groups. Fat intake after treatment was significantly different between the two groups due to differences in the amount of oil. After 4 weeks treatment, there was a decrease in total cholesterol significantly different between the two groups (p = 0,049). In the group that received 45 ml/ day of rice bran oil total cholesterol level decreased 14% and in the group of 15 ml/day total cholesterol level decreased 7,8%. The reduction of LDL and triglycerides and the increasing of HDL was not significantly different between the two groups (p >0,05). In this study, no changes in body weight were significant in both groups. Conclusion. Rice bran oil consumption 45 ml/day led to improvements in lipid profiles better than consumption 15 ml/day;Background. Adult individuals in Indonesian society showed changes in diet pattern and lack of physical activity that increasing risk for hypercholesterolemia and obesity. Hypercholesterolemia would be treated with nutritional therapy. Rice bran oil contains active substances (gamma-oryzanol, phytosterols, and derivatives of vitamin E (tocotrienols and tocopherols) that work in synergy and have been proven on previous research controlling lipid profil. This study aimed to assess the lipid profile improvement in intake of rice bran oil with different amounts without changing the eating patterns of the subjects. Methods. It was parallel and randomized clinical trial for 4 weeks in male with 19-55 years of age, total cholesterol level 200-300 mg/dl, and BMI of 20−30 kg/m2. All subjects were recruited consecutively and classified into two groups that received 45 ml/day or 15 ml/day rice bran oil for 4 weeks. The demographic data interviews, physical activity and anthropometric examination were taken before intervention. Food intake were assessed before and after intervention. Laboratory test of lipid profile performed before and after 4 weeks of treatment. Results. A total of 20 subjects consisting of 10 subjects with 45 ml/day rice bran oil and 10 subjects with 15 ml/day had obtained similar characteristics in age, education level, nutritional status, physical activity, smoking, family history of hypercholesterolemia, BMI and lipid profiles. Food intake includes intake of energy, carbohydrate, protein, fat and fiber before treatment did not significantly difference between two groups. Fat intake after treatment was significantly different between the two groups due to differences in the amount of oil. After 4 weeks treatment, there was a decrease in total cholesterol significantly different between the two groups (p = 0,049). In the group that received 45 ml/ day of rice bran oil total cholesterol level decreased 14% and in the group of 15 ml/day total cholesterol level decreased 7,8%. The reduction of LDL and triglycerides and the increasing of HDL was not significantly different between the two groups (p >0,05). In this study, no changes in body weight were significant in both groups. Conclusion. Rice bran oil consumption 45 ml/day led to improvements in lipid profiles better than consumption 15 ml/day, Background. Adult individuals in Indonesian society showed changes in diet pattern and lack of physical activity that increasing risk for hypercholesterolemia and obesity. Hypercholesterolemia would be treated with nutritional therapy. Rice bran oil contains active substances (gamma-oryzanol, phytosterols, and derivatives of vitamin E (tocotrienols and tocopherols) that work in synergy and have been proven on previous research controlling lipid profil. This study aimed to assess the lipid profile improvement in intake of rice bran oil with different amounts without changing the eating patterns of the subjects. Methods. It was parallel and randomized clinical trial for 4 weeks in male with 19-55 years of age, total cholesterol level 200-300 mg/dl, and BMI of 20−30 kg/m2. All subjects were recruited consecutively and classified into two groups that received 45 ml/day or 15 ml/day rice bran oil for 4 weeks. The demographic data interviews, physical activity and anthropometric examination were taken before intervention. Food intake were assessed before and after intervention. Laboratory test of lipid profile performed before and after 4 weeks of treatment. Results. A total of 20 subjects consisting of 10 subjects with 45 ml/day rice bran oil and 10 subjects with 15 ml/day had obtained similar characteristics in age, education level, nutritional status, physical activity, smoking, family history of hypercholesterolemia, BMI and lipid profiles. Food intake includes intake of energy, carbohydrate, protein, fat and fiber before treatment did not significantly difference between two groups. Fat intake after treatment was significantly different between the two groups due to differences in the amount of oil. After 4 weeks treatment, there was a decrease in total cholesterol significantly different between the two groups (p = 0,049). In the group that received 45 ml/ day of rice bran oil total cholesterol level decreased 14% and in the group of 15 ml/day total cholesterol level decreased 7,8%. The reduction of LDL and triglycerides and the increasing of HDL was not significantly different between the two groups (p >0,05). In this study, no changes in body weight were significant in both groups. Conclusion. Rice bran oil consumption 45 ml/day led to improvements in lipid profiles better than consumption 15 ml/day]
Jakarta: Fakultas Kedokteran Universitas Indonesia, 2015
T58738
UI - Tesis Membership  Universitas Indonesia Library
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Afifah Kusuma Vardhani
Abstrak :
Penggunaan bahan alam sebagai produk perawatan kulit sudah dilakukan oleh wanita Indonesia secara turun temurun, seperti penggunaan lulur bagi wanita Jawa dan bedak dingin bagi wanita Kalimantan yang berbahan dasar beras. Bekatul, lapisan terluar dari beras, memiliki potensi yang masih dapat dikembangkan salah satunya sebagai pencerah kulit. Tujuan dari penelitian ini yaitu untuk mengetahui manfaat ekstrak etanol bekatul beras hitam (Oryza sativa L. indica) sebagai pencerah kulit dalam bentuk sediaan losion. Pada penelitian ini, kadar gamma oryzanol ditentukan menggunakan KCKT (Kromatografi Cepat Kinerja Tinggi). Penetapan total phenolic compound (TPC) atau kadar fenol total dilakukan menggunakan reagen Folin-Ciocalteu dan dibaca serapannya oleh microplate reader pada panjang gelombang 720 nm. Sedangkan uji penghambatan in vitro enzim tirosinase dibaca serapannya oleh microplate reader pada panjang gelombang 490 nm. Ekstrak etanol bekatul beras hitam kemudian diformulasikan dalam losion minyak dalam air untuk dilakukan uji manfaat secara in vivo. Kadar gamma oryzanol dan fenol total pada ekstrak bekatul beras hitam secara berturut-turut yakni sebesar sebesar 118,57 mg/g dan 175,48 mg/g. Ekstrak etanol bekatul beras hitam menghambat enzim tirosinase secara in vitro dengan nilai IC50 sebesar 74,8 µg/ml. Losion berisi ekstrak diaplikasikan pada lengan relawan (n=34), dan pada lengan lain diaplikasikan losion kontrol. Analisis data dilakukan menggunakan aplikasi GraphPad Prism 8.3.0, data diuji menggunakan t-test berpasangan dan didapatkan hasil penurunan secara signifikan pada indeks melanin (p<0,0001) dan indeks eritema (p<0,0001) pada lengan yang dioleskan losion berisi ekstrak bekatul beras hitam. Kesimpulannya, losion mengandung ekstrak bekatul beras hitam lebih efektif dalam mencerahkan kulit dibanding dengan losion kontrol. ......Nature based skincare has been used empirically by Indonesian women. Javanese women apply rice based traditional bodycare called lulur, while Kalimantan women apply rice based face care called bedak dingin. Rice bran, the outer layer of rice grain, has potential to be utilized as skin lightening. The aim of this study is to determine the efficacy of lotion containing black rice bran (Oryza sativa L. indica) extract as skin lightening. In this study, high performance liquid chromatography was performed to measure gamma oryzanol content. Folin-Ciocalteu reagent was added to determine total phenolic content of black rice bran (Oryza sativa L. indica) and measured under microplate reader wavelength 720 nm. In vitro tyrosinase inhibitor was measured under microplate reader wavelength 490 nm and the results was simbolized with IC50. Gamma oryzanol content and total phenolic content in black rice bran (Oryza sativa L. indica) ethanolic extract were 118,57 mg/g and 175,48 mg/g respectively. Ethanolic extract had potential to inhibit tirosinase enzyme in vitro with IC50 of 74,8 µg/ml. Black rice bran (Oryza sativa L. indica) ethanolic extract was formulated into oil in water (o/w) lotion to be tested in vivo. 34 women were applying lotion containing black rice bran extract at one side forearm and base placebo lotion as control at the other side forearm. The results were tested with paired t-test by GrapdPad Prism 8.3.0 application. There was significant decreasing of melanine index and erythema index with both p value <0,0001 in forearm with lotion containing black rice bran ethanolic extract. As the resume, lotion containing black rice bran extract is more effective to be applied as skin brightening than placebo lotion.
Depok: Fakultas Farmasi Universitas Indonesia, 2020
T-pdf
UI - Tesis Membership  Universitas Indonesia Library
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Wilaiporn Pongpian
Abstrak :
ABSTRACT
The study investigated the soxhlet extraction of Leum Pua rice bran oil (Oryza sativa L.) using 12 hours of extraction time, with comparison of product with hexane and ethanol as solvent. The chemical properties and gamma-oryzanol content in the rice bran oil were investigated. The results showed that the highest yield of rice bran oil was obtained from extraction using 70:30 %v/v ethanol:water solvent with percent yield of 21.89±0.35 g (mean+SD)/100g of dry rice bran) and maximum amount of gamma-oryzanol of 0.4647 mg/L of rice bran oil. The chemical properties and gamma-oryzanol content of Leum Pua rice bran oil indicates acceptable quality of oil when stored for a long time causing foul odour due to lipid peroxidation.
Pathum Thani: Thammasat University, 2019
670 STA 24:2 (2019)
Artikel Jurnal  Universitas Indonesia Library