Ekstraksi Teh Putih Berbantu Ultrasonik pada Berbagai Amplitudo

A. Widyasanti, T. Halimah, Dadan Rohdiana
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引用次数: 2

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh amplitudo yang berbeda terhadap sifat fisikokimia ekstrak teh putih dengan menggunakan Ultrasound Assisted Extraction (UAE). Ekstraksi dilakukan menggunakan pelarut etanol 96% serta ukuran bubuk teh putih 18 mesh. Sonikasi digunakan pada amplitudo 25, 50, 75 dan 100%. Metode yang digunakan adalah percobaan laboratorium dengan analisis deskriptif. Parameter uji yang dilakukan meliputi rendemen total, kadar sisa pelarut, bobot jenis, warna, dan kadar polifenol. Hasil penelitian menunjukkan perbedaan penggunaan amplitudo pada proses ekstraksi mempengaruhi nilai rendemen ekstraksi dan mutu ekstrak dengan penggunaan amplitudo 100% sebagai perlakuan terbaik dengan nilai rendemen total sebesar 67,35%; nilai bobot jenis filtrat 0,8241; bobot jenis ekstrak sebesar 1,0306; dan kadar polifenol sebesar 0,90 mg asam galat ekivalen/g bobot kering. Hasil menunjukkan nilai yang lebih baik dibandingkan dengan maserasi dengan rendemen ekstraksi hasil maserasi 60,12 %; nilai bobot jenis filtrat 0,8163; bobot jenis ekstrak sebesar 1,0053; dan kadar polifenol sebesar 0,64 mg asam galat ekivalen/g bobot kering. Karakteristik warna ekstrak etanol teh putih seluruh perlakuan amplitudo dan maserasi menghasilkan kromatisitas warna merah. Kesimpulan dari penelitian ini adalah adanya pengaruh teknik sonikasi pada sifat fisikokimia ekstrak teh putih dan ekstraksi menggunakan amplitudo 100% menghasilkan nilai rendemen dan kadar polifenol terbaik. Extraction of White Tea by Ultrasound Assisted Extraction at Various AmplitudeAbstractThe purpose of this study was to determine the effect of different amplitudes on physicochemical properties of white tea extract using Ultrasound Assisted Extraction (UAE). Ethanol was used as solvent and material size was 18 mesh. This research used amplitude: 25, 50, 75, and 100%. The method used laboratory experiment using descriptive analysis. The parameters were total extraction total yield, residual solvent content, specific gravity, colour, and total polyphenol. The result showed that the amplitude in extraction process influenced the yield and the quality of the extract. As much as 100% amplitude was the best treatment resulted in total yield of 67.35%; the specific gravity of filtrate was 0.8241; the specific gravity of extract was 1.0306; and the polyphenol content was 0.90 mgGAE /g dryweight. The result of UAE showed a better result than hot maceration with total yield of 60.12%; specific gravity of filtrate was 0.8163; specific gravity of extract was 1.0053; and polyphenol content was 0.64 mgGAE /g dry weight. Colour characteristics of white tea ethanol extracts from all operating amplitude and hot maceration were resulting in red colour. As conclusion, ultrasound technique provided the physicochemical properties changes of extract and 100% amplitude was resulting best value of yield and polyphenol content.••••••
提取白茶有助于各种振幅的超声波
这项研究的目的是通过超声波提取来确定白茶提取物的生理机能。提取方法是使用96%的乙醇溶剂和18粒白茶粉。用于振幅25 50 75和100%。使用的方法是描述性分析的实验室实验。进行的测试参数包括全明细、溶剂残留水平、类型、颜色和多酚水平。研究结果表明,在提取过程中使用振幅会影响表现值和提取物质量的差异,使用100%振幅为最佳治疗值为67.35%;filtrat类型0.8241的权重;提取物的比重为10306;和超过0.90毫克的聚苯乙烯浓度的干失衡。结果显示了比人工摘除法师更好的价值60.12%;filtrat类型0.8163的权重;提取物比重为10053;以及超过0.64毫克的聚苯乙烯浓度的干失衡。白茶乙醇提取物的颜色特性是整个复合物和菌配治疗产生红色色素沉着。这项研究的结论是,对白茶提取物的物理化学性质和提取振幅100%产生了最理想的表现值和多酚含量。这项研究的目的是确定白茶外用超声波提取的不同放大器的效果。乙醇作为溶剂和原料原料是18 mesh。这个研究的振幅:25、50、75和100%。使用实验室实验使用描述分析。parameters是完全提取、剩余solvent满足、特异性重力、颜色和全多酚。最近的推荐人表明,暴露在暴露的优势和extract的质量。在67.35%;filtrate特别重力为0.8241;extract的特别引力是1.0306;多酚含量为0.90毫克(合重量)。阿联酋的结果显示,与其热乳化的总收益为60% .12%;filtrate特别重力为0.8163;extract的引力是1.0053;多酚含量为0.64 mgGAE /g干分量。白茶乙醇的颜色特点来自于所有的工作振兴和热茂被推荐入红绿灯。美国conclusion,超声技术提供了extract和100%振兴的物理属性变化
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