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Rizki Ameliya
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PENGARUH LAMA PEMANASAN TERHADAP VITAMIN C, AKTIVITAS ANTIOKSIDAN DAN SIFAT SENSORIS SIRUP KERSEN (Muntingia calabura L.) Rizki Ameliya; Nazaruddin .; Dody Handito
Pro Food Vol. 4 No. 1 (2018): Pro Food (Jurnal Ilmu dan Teknologi Pangan)
Publisher : Fakultas Teknologi Pangan dan Agroindustri, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (380.263 KB) | DOI: 10.29303/profood.v4i1.77

Abstract

The aim of this research was to determine the effect of boiling time on vitamin C, antioxidant activity, reduction sugar, pH and sensory properties (tastes and aroma) of singapore cherry (Muntingia calabura L.) syrup. The experimental design used was Completely Randomized Design (CRD) one factor (boiling time) consist of five treatments: P1 (20 minute), P2 (30 minute), P3 (40 minute), P4 (50 minute), P5 (60 minute). The observed parameters were vitamin C, antioxidant activity, reduction sugar, pH and sensory properties (tastes and aroma with hedonic and scoring test). The data were analyzed using analysis of variance at 5% confident level with Co-Stat software. The significant data were analyzed using Honestly Significant Differences (HSD) test. The result showed that boiling time gave a significant effect on pH, vitamin C, antioxidant activity and reduction sugar but didn’t significant on sensory properties (tastes and aromas). The best treatment was boiling time for 20 minutes that resulted in the highest value of vitamin C (28.09 mg/100 g material) and antioxidant activity (51.79%). Meanwhile the reduction sugar was 7.95%, pH 4.28, the taste was rather sweet and the aroma was rather specific of Singapore cherry.Keywords: antioxidant, Singapore cherry, syrup, vitamin C.ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh lama pemanasan (perebusan) terhadap kadar vitamin C, aktivitas antioksidan, gula reduksi, pH dan sifat sensoris (rasa dan aroma) sirup kersen (Muntingia calabura L.). Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan satu faktor yaitu lama pemanasan (perebusan) yang terdiri dari lima perlakuan, meliputi; P1 (20 menit), P2 (30 menit), P3 (40 menit), P4 (50 menit), P5 (60 menit). Parameter yang diamati meliputi vitamin C, aktivitas antioksidan, gula reduksi, pH dan sifat sensoris rasa dan aroma (metode hedonik dan scoring) sirup kersen. Data hasil pengamatan diuji dengan analisis keragaman pada taraf nyata 5 % menggunakan software Co-Stat. Apabila hasil pengamatan terdapat perbedaan yang nyata, maka diuji lanjut menggunakan uji Beda Nyata Jujur (BNJ). Hasil penelitian menunjukkan bahwa perlakuan lama perebusan memberikan pengaruh yang berbeda nyata (signifikan) terhadap pH, vitamin C, aktivitas antioksidan dan gula reduksi namun memberikan pengaruh yang tidak berbeda nyata (non signifikan) terhadap sifat sensoris rasa dan aroma (uji hedonik dan scoring) sirup kersen. Perlakuan terbaik adalah lama perebusan 20 menit karena menghasilkan sirup kersen dengan vitamin C tertinggi (28,09 mg/100 g bahan) dan aktivitas antioksidan tertinggi (51,79%), gula reduksi 7,95%, pH 4,28, rasa agak manis dan aroma agak khas kersen.Kata kunci: antioksidan, kersen, sirup, vitamin C.