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Hasil Pencarian

Ditemukan 7 dokumen yang sesuai dengan query
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Abstrak :
The objectives of this research were to determine antioxidant activity of eight different beans, included snap bean (Phaseolus vulgaris L), pigeon pea (Cajanus cajan (L.) Millsp.), mung bean (Phaseolus aureus L.), pea bean (Pisum sativum L.), soybean (Glycine max (L.) Merr.), kidney bean (Phaseolus vulgaris L.), yardlong bean (Vigna sinensis var. sesquipedalis L), and cowpea (Vigna unguiculataL.). Each bean was milled then extracted in 80% ethanol. The extract was evaporated to find antioxidant crude extract. This extract was prepared for antioxidant activity measurement using both conjugated diene and ferric thiocynate methods. Kidney bean had the highest antioxidant crude extract content followed by yardlong bean. At the concentration of 500 ppm, kidney bean and yardlong bean had the highest antioxidant activity among the beans studied, but lower than tocopherol at the same concentration. The conjugated diene content of both beans was 33% compare to 23% for tocopherol. Inhibition of linoleic acid oxidation of yardlong bean and kidney bean were 48% and 52%, respectively compare to 60% for tocopherol.
580 AGR 19 (1-4) 2006
Artikel Jurnal  Universitas Indonesia Library
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Rina Permatasari
Abstrak :
ABSTRAK
Karies gigi masih menjadi masalah kesehatan gigi di Indonesia, sehingga pencegahan menjadi penting. Email gigi merupakan lapisan terluar gigi yang berperan dalam ketahanan gigi terhadap penyebab karies. Biji Kakao Sulawesi Tengah merupakan bahan alam hasil perkebunan unggulan Indonesia, mengandung senyawa alkaloid yang berpotensi meningkatkan ketahanan host email gigi . Penelitian ini merupakan studi biomimetika eksperimental laboratorik in vitro, yang mencakup identifikasi karakteristik senyawaan alkaloid biji kakao klon Sulawesi-1 S1 dan Sulawesi-2 S2 asal Sulawesi Tengah untuk mendapatkan prototype biomimetika, uji khasiat formula alkaloid pada email gigi berupa uji kekerasan email gigi, karakteristik permukaan dan kristal apatit email, serta uji karakteristik permukaan email setelah proses demineralisasi dan remineralisasi email gigi. Hasil penelitian menunjukkan bahwa senyawaan alkaloid klon biji kakao klon S1 dan S2 asal Sulawesi Tengah teridentifikasi mengandung Teobromin T , Teofilin TF dan Kafein K , dengan komposisi T : TF : K = 6 : 1 : 1 untuk S1 dan T : TF : K = 4 : 1 : 1 untuk S2. Formula alkaloid biomimik S1 lebih bermakna dalam meningkatkan kekerasan mikro email gigi dibandingkan S2. Formula alkaloid biomimik S1 dapat mempengaruhi karakteristik permukaan dan meningkatkan derajat kristalinitas apatit email gigi, serta berkhasiat terhadap remineralisasi email gigi. Dengan demikian alkaloid biji kakao Sulawesi Tengah dalam bentuk formula biomimik, berpotensi sebagai alternatif agen remineralisasi email gigi.
ABSTRACT
Dental caries is still a major dental health problem in Indonesia, and preventive measures needs to be done to resolve it. The enamel is the outermost layer of teeth in which play a role in resistance to the cause of dental caries. Central Sulawesi cacao beans are natural materials featured Indonesian plantation crops, contains the alkaloid compounds that could potentially increase the resistance of the host the enamel . The research was a biomimetic study laboratory experiment in vitro, which covered identification of the characteristics of cacao beans s alkaloid compounds of clones Sulawesi 1 S1 and Sulawesi 2 S2 from Central Sulawesi, to obtain biomimetics prototype, to test the efficacy of the alkaloid formula to tooth enamel i.e. enamel microhardhess, surface and apatite crystal characteristics test, and also enamel surface characteristics test after demineralization and remineralization process of tooth enamel. The results of this research showed that the cacao beans s alkaloid compounds of clones S1 and S2 from Central Sulawesi contains Theobromine T , Theophylline TF and Caffeine K , with composition T TF K 6 1 1 for S1 and T TF K 4 1 1 for S2. The S1 biomimic alkaloid formula was more significant in increasing tooth enamel microhardness than S2. S1 biomimic alkaloid formula affected the characteristics of the surface and increased the degree of apatite crystallinity of tooth enamel, as well as efficacious against the remineralization of tooth enamel. Thus Central Sulawesi cacao beans alkaloid in the form of biomimic formula, have potential as an alternative remineralization agents of tooth enamel.
2017
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UI - Disertasi Membership  Universitas Indonesia Library
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Yunita Sari
Abstrak :
Indonesia memiliki status sebagai produsen kopi terbesar keempat di dunia. Senyawa kimia utama dalam biji kopi adalah kafein dan asam klorogenik, yang bermanfaat bagi kesehatan. Memproduksi bahan baku herbal perlu dikeringkan. Freeze-drying adalah metode pengeringan yang digunakan untuk ekstrak. Namun, produk pengeringan beku dapat dengan mudah menyerap kelembaban dan kolin klorida yang digunakan sebagai salah satu komponen NADES sangat higroskopis, sehingga akan lengket. Dalam penelitian ini, kombinasi maltodekstrin-arabic gum (1: 1) dan Aerosil® digunakan dalam formulasi ekstrak biji kopi hijau kering-beku, dengan 25%; 30%; 35% maltodekstrin-arabic gum dan 1%; 2%; 3% Aerosil® untuk desain faktorial, jadi ada 9 formula. Setelah proses pengeringan beku, tidak ada perbedaan yang signifikan pada konsentrasi kafein dan hasil. Namun, konsentrasi permen karet maltodekstrin-arabik memiliki efek pada asam klorogenik dan konsentrasi Aerosil® berpengaruh pada kadar air. Hasilnya, formulasi terbaik adalah 25% maltodekstrin-arabic gum dengan 3% Aerosil®.
Indonesia has the status as the fourth largest coffee producer in the world. The main chemical compounds in coffee beans are caffeine and chlorogenic acid, which is beneficial for health. Producing herbal raw materials needs to be dried. Freeze drying is a drying method used to extract. However, freeze drying products can easily absorb moisture and choline chloride which is used as one of the components of NADES which is very hygroscopic, so it will be sticky. In this study, a combination of maltodextrin-arabic gum (1: 1) and Aerosil® was used in the formulation of freeze-dried green coffee bean extract, with 25%; 30%; 35% maltodextrin-arabic gum and 1%; 2%; 3% Aerosil® for factorial design, so there are 9 formulas. After the freeze drying process, there were no significant differences in the concentration and yield of caffeine. However, the concentration of maltodextrin-arabic gum has an effect on chlorogenic acid and the concentration of Aerosil® affects the water content. As a result, the best formulation is 25% maltodextrin-arabic gum with 3% Aerosil®.
Depok: Fakultas Farmasi Universitas Indonesia, 2019
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UI - Skripsi Membership  Universitas Indonesia Library
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Budhiarti Zein
Jakarta: Fakultas Farmasi Universitas Indonesia, 1977
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UI - Skripsi Membership  Universitas Indonesia Library
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Yu, Mi-gyong
Kyonggi-do Paju-si : Hanguk Haksul Chongbo, 2007
KOR 641.5 YUM u
Buku Teks  Universitas Indonesia Library
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Abstrak :
Basic of cocoa bean preparation process is fermentation. Fermentation is done especially to improve and build specific chocolate flavour of cocoa bean and its products, i.e. cocoa liquor, butter, and powder; and also to decrease the disliked flavors, like bitter and acid. Research of cocoa bean fermentation was hold on in Subak Abian Pucaksari, Tabanan. This research involved 20 cooperative farmers with 0,5 hectare farm area per each farmer. The treatment used was time of cocoa bean fermentation, i.e. without fermentation, not fully fermentation (4 days), and fully fermentation (5 days). Variables abserved were dried cocoa bean's physic and chemical quality, and also cocoa product's chemical and organoleptic quality. Organoleptic test done to cocoa liquor and powder was descriptive and ranking test used 15 semi-trained panelists. The ersult showed that the fermentation process had significant influence to dried cocoa bean's chemical quality and its products. Fermentation had no significant influence to dried cocoa bean's physic quality. For organoleptic quality attributes, all panelists gave the highest rank for cocoa liquor and powder prepared from fullyfermented cocoa bean.
502 JMSTUT 10:1 (2009)
Artikel Jurnal  Universitas Indonesia Library