Abstract
Sentul fruit (Sandoricum koetjape Merr.) is representing one kind of fruit that is amount enough abundance at West Nusa Tenggara, but it hasn’t been exploited in an optimal fashion and more castaway useless. Parts of Sentul plant have been applied as traditional medicine. Sentul fruit can be oxidated by the browning reaction when it is pared or sliced, these symptoms showed the existences of phenolic compounds so that very potential as an antioxidant. To analyze the total phenolic and antioxidant activity of methanol extract of Sentul fruit, the Folin-Ciocalteu and DPPH methods have been used. Results of analysis for three treatment types of samples ( A, B, and C) shown their total phenolic: 6,9 %, 12,86 %, and 9,36 % respectively and also their antioxidant activity shown by values of IC50 of each: 43,36 ppm (1/IC50 = 0,023 ppm-1); 40,53 ppm (1/IC50 = 0,025 ppm-1); and 44,43 ppm (1/IC50 = 0,0225 ppm-1) respectively. These results indicated that Sentul fruit is very potential as an antioxidant.
Highlights
Abstrak Buah sentul (Sandoricum koetjape Merr.) merupakan satu jenis buah yang jumlahnya cukup banyak di Nusa Tenggara Barat, tetapi belum dimanfaatkan secara optimal dan lebih banyak tidak berguna
These results indicated that Sentul fruit is very potential as an antioxidant
SARAN Hasil analisis terhadap aktivitas antioksidan dari ekstrak kasar (crude extract) daging buah sentul matang pada penelitian ini menunjukkan hasil positif dan cukup tinggi sehingga perlu dilakukan penelitian lebih lanjut terhadap aktivitas antioksidan dari isolat murni senyawa fenolik spesifik yang terdapat dalam ekstrak daging buah sentul serta dari bagian-bagian lain seperti daun, kulit batang, batang, akar, dan bijinya
Summary
Abstrak Buah sentul (Sandoricum koetjape Merr.) merupakan satu jenis buah yang jumlahnya cukup banyak di Nusa Tenggara Barat, tetapi belum dimanfaatkan secara optimal dan lebih banyak tidak berguna. Buah sentul dapat dioksidasi oleh reaksi pencoklatan ketika dikupas atau diiris, gejala ini menunjukkan adanya senyawa fenolik yang sangat potensial sebagai antioksidan. Untuk menganalisis aktivitas fenolik dan antioksidan total dari ekstrak metanol buah sentul, metode FolinCiocalteu dan DPPH telah digunakan.
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