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Abstract. Resianingrum R, Atmaka W, Khasanah LU, Kawiji, Utami R, Praseptiangga D. 2016. Characterization of cassava starchbased edible film enriched with lemongrass oil (Cymbopogon citratus). Nusantara Bioscience 8: 278-282. Good packaging is necessary to prevent food spoilage before and after processing. The edible film maintains food quality and an eco-friendly packaging. Cassava starch-based edible film is capable of being developed because of the approaching appearance of plastic packaging. The addition of essential oils can be used as an alternative to improve the antimicrobial properties of the edible film. Lemongrass oil consists of active compounds that shown antimicrobial activity. Therefore, the characteristics of cassava starch-based edible film incorporated with lemongrass oil were investigated. Concentration of lemongrass oils varied at 0%, 0.25%, 0.5%, 0.75% and 1%. The analyzed edible film characteristics include thickness, water vapor transmission rate, tensile strength, elongation and antimicrobial activity. The results showed that the addition of lemongrass oil increased the thickness, tensile strength, and antimicrobial activity but decreased the elongation of edible films. The water vapor transmission rate of edible films was not affected by the addition of lemongrass oil.

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Penelitian ini bertujuan untuk mengetahui kondisi rendemen optimum dalam proses produksi oleoresin daun jeruk purut pada variasi suhu dan waktu kontak selama proses ekstraksi maserasi dan mengetahui karakteristik mutu oleoresin daun jeruk purut yang meliputi kadar sitronelal, kadar minyak atsiri dan kadar sisa pelarut pada rendemen yang optimum. Penelitian ini menggunakan variasi suhu ekstraksi (70, 75 dan 80°C) dan waktu ekstraksi (4, 5 dan 6 jam). Pada pengolahan data dengan menggunakan (RSM) diketahui persamaan optimasi rendemen oleoresin daun jeruk purut yaitu Y = 7,9333 + 1,2333X 1+ 0,5333X 2- 1,0000X 1² - 0,7000X1² + 0,1250X. Rendemen optimum oleoresin daun jeruk purut diperoleh sebesar 8,447%, didapatkan pada kondisi suhu ekstraksi 78,221°C dan waktu ekstraksi 5,438 jam. Karakteristik mutu oleoresin daun jeruk purut pada rendemen optimum yaitu kadar sitronelal 25,66%, kadar minyak atsiri 9,638% dan kadar sisa pelarut 5,8%.Kata kunci: Ekstraksi, jeruk purut, mutu, oleoresin, optimasi

<p>This research aims to determine the effect of CMC (Carboxyl Methyl Cellulose) concentration on the sensory, physical and chemical properties of beetroot jam (Beta vulgaris L.) cinnamon extract. This research used Completely Randomized Design (RAL) with 1 factor and 4 treatment variation. The results showed that the variation of CMC concentration given on beetroot jam has an effect on the sensory characteristics of color parameters, total dissolved solids, viscosity, water content, water activity and antioxidant activity. The preferred formulation of the panelis is beetroot jam with 1% and 1.5% CMC concentration. The total value of total soluble solids on the beetroot jam with the addition of 1% CMC of 42.54oBrix and CMC 1.5% of 50.73oBrix. The value  viscosity addition of CMC concentration 1% and 1.5% respectively amounted 9774,68 cP and 9858,1 cP. The value of water content with 1% addition of CMC is 46,81% and addition of CMC 1,5% is 51,57%. The activity of water on the beetroot jam with the addition of 1% CMC concentration is 0.88 and CMC 1.5% is 0.92. In testing of antioxidant activity of beetroot jam with addition of CMC1% and CMC 1,5% respectively 52,48% and 55,45%.</p>