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Abstrak :
Belimbing wuluh (Averrhoa bilimbi) merupakan buah yang banyak manfaatnya tapi penggunaannya kurang optimal. Oleh karena itu dilakukan penelitian yang bertujuan untuk memperoleh formula granul dan tablet effervescent dengan bahan berkhasiat ekstrak kering buah belimbing wuluh dengan variasi konsentrasi aspartam sebagai pemanis sehingga dapat dikonsumsi sebagai minuman suplemen sehat komersial. Granul dan tablet dibuat dengan metode granulasi kering pada kondisi kelembaban relatif (RH) 40 % dengan suhu 25 0C. Ketiga formula granul dan tablet effervescent yang dibuat memenuhi syarat evaluasi granul dan tablet effervescent. Hasil analisis kesukaan menunjukkan bahwa tidak ada perbedaan tingkat kesukaan dari ketiga formula granul dan tablet effervescent dari penampilan, rasa dan aroma.

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Averrhoa bilimbi is fruit that has many benefits but the usage is not optimal. That is why the aim of the research is to get formulation of effervescent granule and tablet containing dry Averrhoa bilimbi extract with modified concentration of aspartame as sweetening agent for commercial healthy drink. Granules and tablets were produced with dry method granulation with 40 % of relative humidity (RH) and 25 0C of temperature. The three of formulations were qualified as effervescent granules and tablets. Favorite tests showed that no significant differences of appearances, tastes and flavors for three of effervescent granules and tablets.

Abstrak :
Hiperurisemia adalah keadaan dimana produksi berlebihnya ekskresi asam urat dalam tubuh. Xantin oksidase berperan dalam mengkatalisis hipoxantin dan xantin menjadi asam urat. Salah satu pengobatan hiperurisemia adalah menghambat xantin oksidase sehingga produksi asam urat berkurang. Tujuan penelitian ini untuk mengetahui aktivitas fraksi n-heksana, etil asetat, n-butanol, dan methanol dari daun Averrhoa bilimbi L. dalam menghambat xantin oksidase. Serbuk simplisia di refluks menggunakan etanol, kemudian dilakukan fraksinasi dengan pelarut n-heksana, etil asetat, n-Butanol dan methanol secara berurut-urut. Fraksi n-butanol mempunyai IC50 tertinggi dengan nilai 0,06 μg/mL. Uji kinetika enzim menunjukkan bahwa fraksi n-butanol mempunyai aktivitas penghambatan kompetitif. Dari hasil identifikasi yang dilakukan fraksi n-butanol memiliki senyawa glikosida, tannin, dan flavonoid. ......Hyperuricemia is a condition in which excessive excretion of uric acid in the body. Xanthine oxidase plays a role in catalyzing hypoxanthine and xanthine into uric acid. One of the treatments of hyperuricemic is by inhibiting the xanthine oxidase so that the production of uric acid can be reduced. The purpose of this study was to determine the activity of fraction from n-hexane, ethyl acetate, n- butanol, and methanol from Averrhoa bilimbi L leaves in inhibiting xanthine oxidase. The simplicia powder was refluxed by ethanol, and then fractionated successively by n-hexane, ethyl acetat, n-butanol, and methanol. Fraction of n- butanol had the highest IC50 value of 0.0623 μg / mL. Kinetic enzyme assay showed that n-butanol fraction had competitive inhibitory activity. From the results of phytochemical identification, the fraction of n-butanol contains glycosides, tannins, and flavonoids.

Abstrak :
ABSTRAK
Buah belimbing wuluh Averrhoa bilimbi L. diketahui memiliki potensi sebagai antioksidan karena memiliki kandungan vitamin C yang tinggi, kandungan flavonoid, dan senyawa fenolik. Potensi dari buah belimbing wuluh dapat dimanfaatkan dan diolah menjadi berbagai produk, salah satunya adalah produk kosmetik yang memiliki aktivitas antioksidan. Penelitian ini bertujuan untuk membuat formula gel sabun pembersih wajah yang mengandung ekstrak buah belimbing wuluh dengan konsentrasi ekstrak sebesar 3 , 4 , dan 5 dan menguji aktivitas antioksidan dari setiap formula dengan metode peredaman DPPH 2,2-difenil-1-pikrihidrazil , serta dilakukan uji stabilitas fisik. Hasil penelitian menunjukkan bahwa aktivitas antioksidan tertinggi dimiliki oleh formula 3 dengan konsentrasi ekstrak sebesar 5 dengan nilai IC50 sebesar 16.022,481 ppm ?g/ml . Selain itu ketiga formula stabil secara fisik dalam tiga suhu, yaitu suhu 28 2 C, 40 2 C, dan 4 2 C selama 12 minggu, serta tidak mengalami sineresis pada cycling test. Gel sabun pembersih wajah yang mengandung ekstrak etanol buah belimbing wuluh Averrhoa bilimbi L. stabil secara fisik selama 12 minggu penyimpanan dan memilki penampilan fisik yang baik.

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ABSTRAK
Averrhoa bilimbi L. fruit has a potential as an antioxidant because it contains high vitamin C, flavonoids, and phenolic compounds. Its potential can be utilized into various products, and one of them is as a cosmetic product that has antioxidant activity. The purpose of present study was formulating facial wash in gel form which contain 3 , 4 , and 5 ethanol fruits extracts of Averrhoa bilimbi L. and evaluating the antioxidant activities from all gels with radical scavenging method using the DPPH 1,1 diphenyl 2 picrylhydrazyl radical and also evaluating the physical stability of gels. The results showed that gel formula 3 which contain 5 of ethanol fruits extracts of Averrhoa bilimbi L. has the highest antioxidant activity with IC50 value of 16.022,481 ppm g ml . Physical stability test showed that all gels were physically stable in three different temperatures, which were in 28 2 C, 40 2 C, and 4 2 C, for 12 weeks and there was not syneresis in cycling test. Therefore, it can be concluded that gels which contain ethanol fruits extracts of Averrhoa bilimbi L. were physically stable during 12 weeks of storage and had good appearance.

Abstrak :
Averrhoa bilimbi L. merupakan tanaman suku Oxalidaceae yang telah dimanfaatkan sebagai obat tradisional karena memiliki aktivitas antioksidan yang tinggi, namun masih jarang dimanfaatkan untuk pengobatan topikal dan perawatan kulit. Ekstrak etanol 70% tanaman ini telah dilaporkan memiliki aktivitas antioksidan, tetapi belum terdapat penelitian terkait enzim yang berperan dalam proses penuaan dini seperti enzim elastase. Penelitian ini bertujuan untuk mengetahui hasil rendemen dan kadar air, kandungan senyawa fitokimia, kadar flavonoid total, aktivitas antioksidan metode FRAP, dan uji penghambatan aktivitas enzim elastase dari ekstrak. Metode ekstraksi dilakukan dengan maserasi menggunakan etanol 70%, skrining fitokimia dengan kromatografi lapis tipis, penetapan flavonoid total metode kolorimetri dengan standar rutin, pengujian aktivitas antioksidan metode FRAP dengan standar FeSO4.7H2O dan kontrol positif asam askorbat, serta pengujian antielastase menggunakan porcine pancreatic elastase, substrat N-suksinil-Ala-Ala-Ala-p-nitroanilin, dan kontrol positif epigalokatekin galat (EGCG). Berdasarkan hasil ekstraksi, didapatkan ekstrak kental dengan kadar air 7,5% dan rendemen 21,35% yang positif mengandung senyawa golongan fenol, flavonoid, alkaloid, dan terpenoid, dengan kadar flavonoid total 64,5063±0,44 mg ER/g ekstrak. Pengujian antioksidan FRAP menunjukkan ekstrak memiliki aktivitas antioksidan 20,2295±0,29  g ekuivalen FeSO4/100g ekstrak, sedangkan asam askorbat 308,9458±2,41 g ekuivalen FeSO4/100 g asam askorbat. Pada uji aktivitas penghambatan elastase, ekstrak tidak aktif menghambat aktivitas enzim karena  memiliki aktivitas penghambatan 7,21%  pada konsentrasi 300 ppm, 14,72% pada 400 ppm, dan 29,73% pada 500 ppm, sedangkan EGCG memiliki nilai IC50 39,14 µg/mL. Dengan demikian, disimpulkan ekstrak etanol 70% daun belimbing wuluh memiliki aktivitas antioksidan dengan metode FRAP yang lebih rendah dibandingkan asam askorbat dan tidak aktif menghambat elastase. ......Averrhoa bilimbi L. is a plant of the Oxalidaceae tribe that has been used as a traditional medicine because it has high antioxidant activity, but is still rarely used for topical treatment and skin care. The 70% ethanol extract of this plant has been reported to have antioxidant activity, but there is no research related to enzymes that play a role in the process of premature aging such as the elastase enzyme. This study aimed to determine the yield and water content, phytochemical compound content, total flavonoid content, antioxidant activity of FRAP method, and elastase enzyme activity inhibition test of the extract. The extraction method was carried out by maceration using 70% ethanol, phytochemical screening by thin layer chromatography, determination of total flavonoids by colorimetric method with rutin standard, FRAP method antioxidant activity testing with FeSO4.7H2O standard and ascorbic acid positive control, and elastase enzyme inhibition activity testing using porcine pancreatic elastase, N-succinyl-Ala-Ala-Ala-p-nitroaniline substrate, and epigalocatechin gallate (EGCG) positive control. Based on the extraction results, a thick extract with a moisture content of 7.5% and a yield of 21.35% was obtained which positively contained phenol, flavonoid, alkaloid, and terpenoid compounds, with a total flavonoid content of 64.5063 ± 0.44 mg ER/g extract. FRAP antioxidant testing showed the extract had antioxidant activity of 20.2295 ± 0.29 FeSO4 equivalents/100 g extract, while ascorbic acid was 308.9458 ± 2.41 FeSO4 equivalents/100 g ascorbic acid. In the elastase inhibition activity test, the extract was not active in inhibiting enzyme activity because it had an inhibitory activity of 7.21% at a concentration of 300 ppm, 14.72% at 400 ppm, and 29.73% at 500 ppm, while EGCG had an IC50 value of 39.14 µg/mL. Thus, it is concluded that 70% ethanol extract of belimbing wuluh leaves has antioxidant activity with the FRAP method which is lower than ascorbic acid and is not active in inhibiting elastase.

Abstrak :
ABSTRAK
Oxalidaceae is family of star fruit consist of 6 genera with around 775 species distributed in tropical areas. Averrhoa is a genus among all genera. To 2007 only two species were known as member of the genus, namely Averrhoa bilimbi L. and Averrhoa carambola L. Based on data of garden books at registration collection sub division, center for plant concervation botanic garden, Indonesian Institute of science, A. bilimbi has been recorded as a collection since 1823. It was cultivated at VII.D.3 3a under the name belimbing besi as a local name, originated from java.