PENDUGAAN UMUR SIMPAN EKSTRAK KERING BEKU BIJI MELINJO KERIKIL (GNETUM GNEMON L. “KERIKIL”) BERDASARKAN KADAR SENYAWA RESVERATROL DAN AKTIVITAS ANTIOKSIDAN

Bambang Kunarto, Nfn Sutardi, Nfn Supriyanto, C. Anwar
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Abstract

Biji melinjo kerikil mengandung resveratrol yang merupakan senyawa turunan stilbenoid dan mempunyai aktivitas antioksidan. Selama penyimpanan, senyawa resveratol dapat mengalami perubahan berupa oksidasi dan degradasi yang berdampak pada aktivitas antioksidannya. Penelitian ini bertujuan menduga umur simpan ekstrak kering beku biji melinjo kerikil berdasarkan kadar resveratrol dan aktivitas antioksidan (penghambatan radikal DPPH) sebagai indikator kerusakan. Pendugaan umur simapn dilakukan dengan metoda accelerated shelf life test (ASLT). Metoda ini didasarkan pada penyimpanan pada kondisi yang direkayasa sehingga mempercepat yang terjadinya kerusakan. Penyimpanan dilakukan selama 35 hari pada suhu simpan 35°C, 45°C adn 55°C. Hasil penelitian ini menunjukkan bahwa parameter mutu kritis pada penyimpanan ekstrak kering beku melinjo kerikil adalah aktivitas antioksidan (penghambatan radikal DPPH) karena memiliki energi aktivasi (1301,09 kal/mol) yang lebih rendah dibandingkan energi aktivasi kadar senyawa recveratrol. Umur simpan ekstrak keirng beku biji melinjo kerikil pada penyimpanan 35; 45; 55 dan 28°C berturut-turut adalah 13,57 hari, 12,67 hari, 11,83 hari dan 14,56 hari. Shelf life estimation of melinjo kerikil seeds freeze-dried extract based on resveratrol and antioxidant activityMelinjo kerikil seeds contain resveratrol which is a stilbenoid derivative compound and has antioxidant activity. During storage, resveratrol can be dagraded which have an impact on their antioxidant activity. The aim of this study wa to estimate teh shelf life of melinjo kerikil seed freeze-dried extract based on resveratrol content and inhibition of DPPH radicals as an indicator of damage. Estimation of shelf life is carried out by the accelerated shelf life test (ASLT). This method is based on storage in conditions that are engineered so as to speed up the occurrence of damage. Storage is carried out for 35 days at the temperature of 35°C, 45°C, and 55°C. The results showed that the critical quality parameter in the storage of melinjo kerikil seed freeze-dried extracs was inhibition of DPPH radicals. This is because the activation energy of inhibition of DPPH radicals is lower than the revertrol activation energy. The Shelf life of melinjo kerikil seed freeze-dried extract at storage 35; 45; 55 and 28°C respectively were 13.57 days, 12.67 days, 11.83 days and 14.56 days. 
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年龄测试者根据白藜芦醇和抗氧化剂的化合物和活性水平储存冷冻沙棘籽提取物(GNETUM角膜L.“砾石”)
puleleveratrol种子是一种stilbenoid衍生物,具有抗氧化剂活性。在储存过程中,再氧化和退化会影响其抗氧化剂的活性。本研究的目标是,根据反氧化水平和反氧化活动(DPPH)的可溶性石质萃取物的年代测定,将其储存起来以造成损害为指标。simapn的正值是用方法子加速shelf生活测试(ASLT)进行的。这种方法是基于人工条件的存储,从而加快损害的速度。35天对存储保存温度35°C、- 45°C dna 55°C。这项研究的结果表明,冷冻干燥提取物储存的临界质量参数是一种抗氧化剂活性(DPPH),因为它的活能(1301.09 kal/mol)比化合物recveratrol的活能水平低。年龄保存冷冻的菊苣籽提取物35;45;连续第55、第28°C是13.57 12.67,11.83一天,14.56一天。Shelf的生命测量由松散的、未经加工的种子提取基于resveratrol和抗氧化剂activityMelinjo鹅卵石的磨砂,这是一个突出的导体复合材料,它具有抗氧反应性。在储存过程中,resveratrol可能会发现有对抗氧化剂活动的影响。这项研究的目标是研究助理茶具生活机架生活的估计被激活的机架生命测试埋葬了。这种方法是建立在储存条件上的,以加速损害的可能性为基础。存储是carried out for at 35天之温度35°C, 45°C和55°C。推荐人指出,在存放本料钻钻技术的简易质量参数是对DPPH激进分子的抑制。这是因为DPPH辐射量的激活能量比反冲能量低。一动鹅卵石的书架生活种子freeze-dried extract at存储35;45;55和28°C respectively是13。57天,12 . 67天,11 . 83天和14 . 56天。
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