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Journal : Seminar Nasional Lahan Suboptimal

Penurunan Kadar Oksalat Pati Talas Beneng (Xanthosoma undipes K. Koch) pada Berbagai Konsentrasi NaCl dan Lama Perendaman Agustin, Nur Aini; Indriyani Syafutri, Merynda; Yanuriati, Anny; Malahayati, Nura; Aryani, Desi; Airlangga, Trubus
Seminar Nasional Lahan Suboptimal Vol 10, No 1 (2022): Prosiding Seminar Nasional Lahan Suboptimal ke-10 “Revitalisasi Sumber Pangan N
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Agustin NA, Syafutri MI, Yanuriati A, Malahayati N, Aryani D, Airlangga T. 2022. Decreasing oxalate levels of taro beneng (Xanthosoma undipes K. Koch) starch at various NaCl concentrations and soaking time. In: Herlinda S. et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-10 Tahun 2022, Palembang 27 Oktober 2022. pp. 199-207. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Starch is a group of polysaccharides composed of amylose and amylopectin. Taro beneng (Xanthosoma undipes K. Koch) is one of local commodity tubers that has the potential to be used as starch. The problem with taro beneng is content of oxalate which is in water soluble (oxalic acid) and insoluble (calcium oxalate) forms. This study aimed to determine the effect of NaCl concentrations and soaking time on reducing oxalate levels and oxalate reduction values of taro beneng starch. This study used a Factorial Completely Randomized Design (CRD) with two treatment factors, namely NaCl concentrations (5%; 7.5% and 10%) and soaking time (30 minutes; 60 minutes and 90 minutes). The results showed that the difference in NaCl concentrations and soaking time had significant effect on the decrease in oxalate levels and the increase in oxalate reduction values of taro beneng starch. Taro beneng starch soaked for 90 minutes in 10% NaCl solution was the best treatment, because it had the lowest oxalate level (2700 ppm) and the highest reduction value (93.18%).
Penambahan Ekstrak Daun Gambir pada Pembuatan Permen Jelly Antioksidan Anggraini, Meylin Saputri; Santoso, Budi; Yanuriati, Anny
Seminar Nasional Lahan Suboptimal Vol 11, No 1 (2023): Prosiding Seminar Nasional Lahan Suboptimal ke-11 “Optimalisasi Pengelolaan Lah
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Anggraini, S.M., Santoso, B., dan Yanuriati, A.  2023. Adding gambir leaves extract to the making of antioxidant jelly candy In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-11 Tahun 2023, Palembang 21 Oktober 2023. (pp. 345-357). Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).This study aimed to determine the effect of gambier leaf extract addition on the physical, chemical, and functional and sensory characteristics of antioxidant jelly candy. This study used a factorial completely randomized design (CRD) with two treatment factors and each treatment was repeated three times. Factor A was gambier leaf position (young gambier leaves, old gambier leaves, and mixed gambier leaves) and factor B was gambier leaf extract concentration (17.5%, 35%, and 52.5%). Data were processed using analysis of variance (ANOVA), treatments that had a significant effect were further tested using the Honest Differential Test (BNJ) %. The results showed that treatment A (gambir leaf position) had a significant effect on the antioxidant activity of jelly candy, while treatment B (gambir leaf extract concentration) had a significant effect on total phenol and antioxidant activity of jelly candy. The best treatment was A1B3 (mixed gambier leaves; 52.5% gambier leaf extract) with a total phenol value of 142.02 mgGAE/g, ash content 0.55%, pH 5.64, moisture content 17.62%, antioxidant activity 58.10 ppm.