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PENGARUH SENYAWA ANTIOKSIDAN DALAM PEMBUATAN KLEPON UBI JALAR Devy Cendekia; Hertini Rani; Dian Ayu Afifah
Jurnal Analis Farmasi Vol 4, No 1 (2019)
Publisher : Program Studi Analisis Farmasi dan Makanan Universitas Malahayati

THE EFFECT OF ANTIOXIDANT COMPOUNDS IN SWEET POTATO KLEPON PRODUCTAntioxidants have recently become a widely promoted compound. Free radicals are molecules produced when the body gets damaged food or exposure to unhealthy environments such as tobacco smoke and radiation. Light-skinned fruits and vegetables with distinctive colors such as purple sweet potato, yellow sweet potato, red tomatoes, purple blueberries, yellow corn and orange carrots, are rich in antioxidants. Sweet potatoes are known to have high antioxidants. In addition, sweet potatoes are divided into three types based on differences in color, namely white sweet potato, yellow sweet potato, and purple sweet potato. In the research carried out the addition of three types of sweet potatoes in making klepon. The addition of sweet potato affects the color of the klepon product. Antioxidant compounds contained in sweet potatoes, become inactive again when processed into klepon products. This can be seen from the percentage inhibition value which is smaller than the value of control inhibition (ascorbic acid). So that antioxidant compounds only give color to the klepon product, while the antioxidant benefits have been reduced because of the processing in processing of the product. Keywords: potato, compounds, antioxidant Antioksidan belakangan ini menjadi senyawa yang mulai banyak dipromosikan. Radikal bebas adalah molekul yang diproduksi ketika tubuh mendapatkan makanan yang rusak atau paparan lingkungan yang tidak sehat seperti asap tembakau dan radiasi. Buah dan sayuran yang berkulit terang dengan warna khas seperti ubi jalar ungu, ubi jalar kuning, tomat merah, blueberry ungu, jagung kuning dan wortel orange, kaya akan akan kandungan antioksidan. Ubi jalar diketahui memiliki antioksidan yang tinggi. Selain itu, ubi jalar terbagi menjadi tiga jenis berdasarkan perbedaan warnanya, yaitu ubi jalar putih, ubi jalar kuning, dan ubi jalar ungu. Pada penelitian dilakukan penambahan tiga jenis ubi jalar pada pembuatan klepon. Penambahan ubi jalar ini mempengaruhi warna pada produk klepon. Senyawa antioksidan yang terkandung dalam ubi jalar, menjadi tidak aktif kembali ketika diolah menjadi produk klepon. Hal ini terlihat dari nilai persen penghambatan yang lebih kecil dari nilai penghambatan kontrol (asam askorbat). Sehingga senyawa antioksidan hanya memberikan warna terhadap produk klepon, sedangkan manfaat antioksidannya sudah berkurang karena proses pengolahan dalam pembuatan produk. Kata Kunci: Kentang, senyawa, antioksidan

PENGARUH SENYAWA ANTIOKSIDAN DALAM PEMBUATAN KLEPON UBI JALAR Devy Cendekia; Hertini Rani; Dian Ayu Afifah
Jurnal Analis Farmasi Vol 4, No 1 (2019)
Publisher : Program Studi Analisis Farmasi dan Makanan Universitas Malahayati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33024/jaf.v4i1.1303

THE EFFECT OF ANTIOXIDANT COMPOUNDS IN SWEET POTATO KLEPON PRODUCTAntioxidants have recently become a widely promoted compound. Free radicals are molecules produced when the body gets damaged food or exposure to unhealthy environments such as tobacco smoke and radiation. Light-skinned fruits and vegetables with distinctive colors such as purple sweet potato, yellow sweet potato, red tomatoes, purple blueberries, yellow corn and orange carrots, are rich in antioxidants. Sweet potatoes are known to have high antioxidants. In addition, sweet potatoes are divided into three types based on differences in color, namely white sweet potato, yellow sweet potato, and purple sweet potato. In the research carried out the addition of three types of sweet potatoes in making klepon. The addition of sweet potato affects the color of the klepon product. Antioxidant compounds contained in sweet potatoes, become inactive again when processed into klepon products. This can be seen from the percentage inhibition value which is smaller than the value of control inhibition (ascorbic acid). So that antioxidant compounds only give color to the klepon product, while the antioxidant benefits have been reduced because of the processing in processing of the product. Keywords: potato, compounds, antioxidant Antioksidan belakangan ini menjadi senyawa yang mulai banyak dipromosikan. Radikal bebas adalah molekul yang diproduksi ketika tubuh mendapatkan makanan yang rusak atau paparan lingkungan yang tidak sehat seperti asap tembakau dan radiasi. Buah dan sayuran yang berkulit terang dengan warna khas seperti ubi jalar ungu, ubi jalar kuning, tomat merah, blueberry ungu, jagung kuning dan wortel orange, kaya akan akan kandungan antioksidan. Ubi jalar diketahui memiliki antioksidan yang tinggi. Selain itu, ubi jalar terbagi menjadi tiga jenis berdasarkan perbedaan warnanya, yaitu ubi jalar putih, ubi jalar kuning, dan ubi jalar ungu. Pada penelitian dilakukan penambahan tiga jenis ubi jalar pada pembuatan klepon. Penambahan ubi jalar ini mempengaruhi warna pada produk klepon. Senyawa antioksidan yang terkandung dalam ubi jalar, menjadi tidak aktif kembali ketika diolah menjadi produk klepon. Hal ini terlihat dari nilai persen penghambatan yang lebih kecil dari nilai penghambatan kontrol (asam askorbat). Sehingga senyawa antioksidan hanya memberikan warna terhadap produk klepon, sedangkan manfaat antioksidannya sudah berkurang karena proses pengolahan dalam pembuatan produk. Kata Kunci: Kentang, senyawa, antioksidan

Response Surface Methodology-Based Parameter Optimization of Candlenut Seeds Extraction (Aleurites moluccana Willd) Yeni Variyana; Dewi Ermaya; Shintawati Shintawati; Devy Cendekia; Mahfud Mahfud
Equilibrium Journal of Chemical Engineering Vol 7, No 1 (2023): Volume 7, No 1 July 2023
Publisher : Program studi Teknik Kimia UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/equilibrium.v7i1.72842

Abstract. Aleurites moluccana Willd, known candlenut plant, has the potential to be used for vegetable oil, pharmacological purposes, and biofuel. However, there is a lack of knowledge on the optimal extraction conditions for this extraction. The current study aimed to use response surface methodology (RSM) to optimize the Microwave Hydrodiffusion Gravity (MHG) conditions for extraction yield. A three-factor-three-level Box-Behnken design (BBD) was used to investigate the effects of three independent parameters: material size (A), microwave power (B), and extraction time (C). The experimental data for the candlenut seed extraction were analyzed to obtain quadratic polynomial equations. The effects of various parameters on the yield of extraction yield were then examined and analyzed using plots and contours.The results showing extraction yield significantly influenced all independent parameters were p < 0.0001. Further, The study predicted the optimum conditions for extracting candlenut seeds, which included using material size in 1.378 cm, microwave power of 599.359 W, and extraction time 66.076 min, resulted yield of 5.015%. Based on experimental data conditions, the highest extraction yield was 5.5% of 1 cm, 600 W, and 60 min, respectively, which were in good agreement with the predicted model. The study concluded that the optimized MHG method could be useful in industrial extraction processes and the use of statistical method can optimize the extraction process and reduce the number of experiments required.Keywords:Candlenut, RSM, MHG, yield

Formation of Phosphate Crystals from Cow Urine Using Aeration System Batch Reactor Nur Hidayatul Fitri; Adityas Agung Ramandani; Devy Cendekia; Dedi Teguh
CHEMICA: Jurnal Teknik Kimia Vol 10, No 2 (2023): August 2023
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/chemica.v10i2.26595

The waste generated from the livestock sector is cow urine containing nitrogen, sulfur, phosphate, ammonium, sodium, manganese, iron, silica, chlorine, magnesium and calcium. The aim of this research is to reduce phosphate levels which will have an impact on the environment caused by cow urine which contains phosphate and ammonium and forms phosphate crystals using a batch reactor with an aeration system. The results of wastewater treatment using a batch reactor produce precipitate in the form of phosphate crystals which can be used as fertilizer for plants. This study used a completely randomized design (CRD) with two repetitions, namely with a comparison of the rate of aeration (air flow) 1 Lpm, 1.5 Lpm and 2 Lpm with the time used, namely 0 minutes, 60 minutes, 120 minutes, 180 minutes and 240 minute. Based on research that has been done, the highest aeration rate (air flow) in phosphate removal in cow urine waste is at 1 Lpm air flow with a time of 240 minutes and a phosphate removal efficiency of 84.8822%. Meanwhile, at an air flow of 1.5 Lpm with a time of 60 minutes and a phosphate removal efficiency of 95.4315%. At an air flow of 2 Lpm with a time of 240 minutes, the removal efficiency can only be 34.3421%. The content of phosphate crystals obtained from the XRF results was obtained at 3.173%. At an air flow of 2 Lpm with a time of 240 minutes, the removal efficiency can only be 34.3421%. The content of phosphate crystals obtained from the XRF results was obtained at 3.173%. At an air flow of 2 Lpm with a time of 240 minutes, the removal efficiency can only be 34.3421%. The content of phosphate crystals obtained from the XRF results was obtained at 3.173%.

UTILIZATION OF BAMBOO WASTE BY ENGINEERING ACID HYDROLYSIS (H2SO4) TO PRODUCE FURFURAL COMPOUNDS Nur Hidayatul Fitri; Adityas Agung Ramandani; Devy Cendekia; Dedi Teguh
CHEMICA: Jurnal Teknik Kimia Vol 10, No 2 (2023): August 2023
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/chemica.v10i2.26609

Bamboo waste containing lignocellulosic can be used as a material for forming furfural compounds. Furfural is an intermediate product that is widely needed by the chemical industry in the manufacture of finished products such as resins, disinfectants, lubricating oils, synthetic rubber, and so on. This product can be produced from materials containing pentosan. The purpose of this study was to determine the effect of the delignification process on pentosan levels,yield and characterization of the resulting furfural, as well as the potential of pentosan to become furfural compounds. In this study the formation of furfural from bamboo waste was carried out using the acid hydrolysis method, with the independent variables namely cooking temperatures of 90 oC, 100 oC and 110 oC, H2SO4 concentrations of 5%, 10% and 15% and cooking times of 60 minutes, 90 minutes , and 120 minutes. Based on the results of research that has been done, it is known that the delignification process has an influence on the pentosan level, where the sample without delignification obtained a pentosan level of 11.10% and using the delignification process obtained a pentosan level of 14.67%. Characterization of furfural analysis results by color test showed a change in color to red and based on the results of GC-MS analysis at retention time 24.

Analisis limbah pertanian kelapa sebagai adsorben dalam penurunan total padatan pada geywater Devy Cendekia; Dian Ayu Afifah; Fadian Farisan Silmi
AGROINTEK Vol 17, No 4 (2023)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v17i4.17931

Agiculture waste is an unused by-product from the remnants of agicultural activities. The Impact of agiculture waste is becoming a substance contaminant that can disturb life biotic as well as become a source of disease. Agiculture waste is divided into three goups: waste agiculture pre-harvest, waste agiculture at the moment harvest, and waste agiculture post-harvest. Handling agiculture waste could be conducted by manipulating waste that becomes a product-appropriate use. Agiculture waste that can be utilized is shell coconut waste. Shell coconut waste could be made adsorbent in reducing solids pollutants in geywater. This study used a continuous adsorption column method with adsorbent media engineered from shell coconut waste. So that it can be known the potential of shell coconut waste as an adsorbent in reducing total solids in geywater. Based on analysis using an adsorption test with an isotherm model, the adsorbent product from engineering waste shell coconut can remove 64% of solids suspended in geywater. The adsorption process of the solid suspended follows the Langmuir isotherm model, with capacity adsorption from an adsorbent of 0.0412 mg g-1. Adsorbent waste agicultural products can reduce total solids dissolved in geywater by 3.7%. Therefore, adsorbent products from agiculture waste could become alternative adsorption media in reducing solids pollutants in geywater.

Adhesive formulation and particle size in making bio briquettes from bamboo pyrolysis waste charcoal raw material Muhammad Heldita Agil Laresha; Devy Cendekia; Dewi Ermaya; Shintawati Shintawati; Adityas Agung Ramandani
Jurnal Litbang Industri Vol 14, No 1 (2024)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24960/jli.v14i1.8522.35-42

Bamboo is one of the biomass resources that Indonesia has a lot of untapped potential for using as a renewable energy source. Solid waste called biomass is used as a sustainable energy source to replace fossil fuels (i.e., petroleum), because it does not contain Sulphur and pollute the air. This study aimed to evaluate the quality of bio briquettes produced from waste charcoal from bamboo pyrolysis. being aware of the maximum calorific value depending on the adhesive quantity and particle size. Moreover, understand how the size of the particles and the amount of adhesive used impact the calorific value of bio briquettes. This study employed the pyrolysis of bamboo charcoal as its raw material. The charcoal's particle sizes varied, ranging from 30 to 50 mesh, and the percentage of tapioca adhesive varied from 6% to 10%, with a 1:10 adhesive to water ratio between the three samples. The results of the tests that have been carried out show that bamboo charcoal from bamboo pyrolysis can be used as bio briquettes of good quality. The highest calorific value was found in bio briquettes, with a variation in the percentage of adhesive of 6% and a particle size of 50 mesh, which was 6131.58 calories per gramme. The greater the percentage of adhesive used, the smaller the resulting calorific value, and the smaller the particle size used, the greater the resulting bio briquette calorific value.

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