scholarly journals Pemanfaatan Ubi Jalar (Ipomoea Babatas, L.) Menjadi Sirup Glukosa Dengan Metode Hidrolisis Asam

2020 ◽  
Vol 4 (1) ◽  
pp. 21-27
Author(s):  
Lukhi Mulia Shitophyta
Keyword(s):  
Acid Hydrolysis ◽  
Sweet Potato ◽  
Glucose Production ◽  
Raw Material ◽  
Sweet Potatoes ◽  
Hydrolysis Time ◽  
Glucose Content ◽  
Hydrolysis Method ◽  
Glucose Syrup

Sweet potato (Ipomea Babatas, L.) is a tuber plant that contains carbohydrates, calcium, and starch. Besides being consumed as food, sweet potato can be used as a raw material for making glucose syrup. The study aimed to investigate the effect of hydrolysis time and HCl volume on glucose production. The starch was extracted from sweet potatoes then deposited for an hour. The glucose syrup production was carried out by acid hydrolysis method at 100°C. The results showed that the highest glucose content of 62.76% was obtained at 30 minutes hydrolysis time and 15 ml HCl volume. The smallest glucose content is obtained at the longest hydrolysis time. The greater the volume of HCl, the smaller the glucose content.

PENGARUH WAKTU HIDROLISA DAN KONSENTRASI ASAM PADA HIDROLISA PATI KENTANG DENGAN KATALIS ASAM

EKUILIBIUM ◽  
2014 ◽  
Vol 13 (2) ◽  
Author(s):  
Inayati Inayati
Keyword(s):  
Acid Concentration ◽  
Reaction Rate ◽  
Acid Catalyst ◽  
Glucose Production ◽  
Operating Conditions ◽  
Raw Material ◽  
Optimum Operating ◽  
Pseudo First Order Reaction ◽  
Glucose Content ◽  
Glucose Syrup

<p>Abstract: Potato has high content of carbohydrate (starch), so it can be used as raw material<br />for the glucose production. The basic principle to produce glucose from potatoes is hidrolysis of<br />polysaccharides (starch) into monosaccharides and disaccharides. In this work, potatoes were<br />converted into glucose syrup by hydrolysis using hydrochloric acid as catalyst. The aim of this<br />work is to study the effect of acid concentration on the reaction rate. Hydrolysis was carried out<br />with constant parameters, namely 20 gram of starch, 300 rpm of its rotational speed and the<br />operating temperature of 100°C, and variable parameters including acid concentration (0.5 N, 1<br />N, 1.5 N, and 2 N) and the hydrolyzing time (30 minutes, 60 minutes, 90 minutes, 120 minutes,<br />and 150 minutes). The glucose content were analyzed using the Lane-Eynon methode. The<br />data analysed showed the higher concentration of acid and time of hydrolysis caused higher<br />glucose formed. Optimum operating conditions was at 2 N HCL as catalyst. In this study, by<br />assuming a pseudo-first order reaction, the reaction rate constants obtained at range of 0.0047<br />to 0.0076/min.<br />Keywords: Potatoes, Starch, Hydrolysis, Acid concentration, Acid catalyst</p>

scholarly journals The Effects of Temperature and Potassium Fertilizer on the Growth, Yield, and Biochemical Parameters of Ipomoea batatas var. Antin-1

2020 ◽  
Vol 73 (3) ◽  
Author(s):  
Rini Sulistiani ◽  
Rosmayati ◽  
Luthfi A. M. Siregar ◽  
Fauziyah Harahap
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Growth Yield ◽  
Glucose Production ◽  
Morphological Properties ◽  
Anthocyanin Content ◽  
Potassium Fertilizer ◽  
Glucose Content ◽  
Four Levels ◽  
The Impact

The impact of temperature and potassium fertilizers on the growth, yield, and basic biochemical characteristics of sweet potato, <em>Ipomoea batatas </em>var. Antin- 1, was investigated in lowland and highland terrains. In this study we aimed to determine the different traits of the sweet potato, based on its morphology, physiology, and biochemical composition, following treatments with a potassium fertilizer at different temperatures. The study was undertaken using a nested factorial design. The first factor was temperature at each of the two sites: T1 (lowland) and T2 (highland). The second factor was potassium fertilizer (K<sub>2</sub>O) nested within the temperature factor and consisting of four levels of K: K0 (0 kg/ha), K1 (50 kg/ha), K2 (100 kg/ha), and K3 (150 kg/ha). Each potassium treatment was replicated three times at each location. Plant vegetative growth in the lowland region, with a daily average temperature of 26.8 °C, tended to be more bushy, with several different morphological properties: The main stem was longer (160.7 cm) and spreading, the stem diameter was greater, and the petioles were significantly longer in the lowland plants compared with the highland plants; however, no differences were observed in the leaf characteristics. The differential temperature (depending on altitude) resulted in significant differences in relative growth rates (RGR) and net assimilation rates (NAR); the values for RGR-1 and NAR-1 in the lowlands were higher than those in the highlands. The tuber weight, yield index, anthocyanin accumulation, and glucose content were significantly higher in the highland crops than in the lowland plants, which grew under relatively higher temperatures. Potassium applications caused significant differences in the anthocyanin content (mg/100 g fresh weight), anthocyanin production (kg/ha), and glucose production (kg/ha) at different locations.

scholarly journals HIDROLISIS ASAM PADA TEPUNG PATI UBI JALAR PUTIH (Ipomoea batatas L.) DALAM PEMBUATAN GULA CAIR

2018 ◽  
Vol 6 (2) ◽  
pp. 77
Author(s):  
RTM Sutamihardja ◽  
Nia Yuliani ◽  
Hana Laelasari ◽  
Devy Susanty
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Potato Starch ◽  
Raw Material ◽  
Hydrolysis Time ◽  
Hydrolysis Process ◽  
Sweet Potato Starch ◽  
Hcl Concentration ◽  
Two Stages ◽  
Industrial Needs

Acid Hydrolysis on The Starch Flour of white sweet potato (Ipomoea batatas L.) in Making of Liquid SugarNational sugar needs for both direct consumption and for industrial needs will continue to increase as the population increases. According to Dirjenbun, in 2014 the national sugar demand reaches 5.7 million tons. Consisting of 2.8 million tons of white crystalline sugar for direct community consumption and 2.9 million tons of refined crystal sugar to meet industrial needs. White sweet potato can be used as raw material for making liquid glucose through hydrolysis process with acid (HCl). The preparation of liquid glucose consists of two stages: gelatinization stage and hydrolysis stage. Optimum hydrolysis was determined by variations in HCl concentration of 0.25; 0.5; and 0.75 N and time variations of 30, 60, and 90 minutes. The yield of sweet potato starch was 28.82% and the highest yield of hydrolysis result of white sweet potato starch was 94.07% at acid concentration 0.75 N with hydrolysis time 90 minutes.Keywords: white sweet potato, Flour of white sweet potato, liquid sugar, acid hydrolysisABSTRAKKebutuhan gula nasional baik untuk konsumsi langsung maupun untuk kebutuhan industri akan terus meningkat sejalan dengan meningkatnya jumlah penduduk. Menurut Dirjenbun, pada tahun 2014 kebutuhan gula nasional mencapai 5,7 juta ton yang terdiri dari 2,8 juta ton gula kristal putih untuk konsumsi masyarakat langsung dan 2,9 juta ton gula kristal rafinasi untuk memenuhi kebutuhan industri. Ubi jalar putih dapat dijadikan bahan baku pembuatan glukosa cair melalui proses hidrolisis dengan asam (HCl). Pembuatan glukosa cair terdiri dari dua tahap yaitu tahap gelatinisasi dan tahap hidrolisis. Hidrolisis optimum ditentukan dengan variasi konsentrasi HCl yaitu 0,25; 0,5; dan 0,75 N dan variasi waktu 30, 60, dan 90 menit. Rendemen pati ubi jalar didapatkan sebesar 28,82% dan rendemen glukosa tertinggi hasil hidrolisis pati ubi jalar putih sebesar 94,07% pada konsentrasi asam 0,75 N dengan waktu hidrolisis 90 menit.Kata kunci: Ubi jalar putih, Tepung Pati Ubi Jalar Putih, Gula cair, hidrolisis asam

scholarly journals Retention of β-carotene in biofortified sweet potato chips after processing

2019 ◽  
Vol 42 ◽  
pp. e43103 ◽  
Author(s):  
Luís Marangoni Júnior ◽  
Danielle Ito ◽  
Sophia Moyses Lamonica Ribeiro ◽  
Marta Gomes da Silva ◽  
José Maurício de Aguirre ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Potato Chips ◽  
Boiling Water ◽  
Raw Material ◽  
Sweet Potatoes ◽  
Air Circulation ◽  
Β Carotene

Consumption of biofortified foods such as sweet potatoes with high content of β-carotene may reduce deficiency of this micronutrient. The development of biofortified sweet potato chips expands the distribution and offers an alternative to the consumption of this product. The aim of this study was to evaluate the thermal blanching methods (steam and in boiling water) in β-carotene retention in the production of dehydrated biofortified sweet potato chips with air circulation at 65°C. The raw material, the chips blanched in steam and in boiling water had a content of β-carotene of 501.86 ± 53.65, 490.23 ± 30.00 and 473.91 ± 11.43 µg g-1 (d.b.) respectively. The retention of β-carotene for steam and boiling water blanching was 97.7 and 94.4% respectively. The blanching conditions followed by drying used in the processing to obtain sweet potato chips were adequate as they resulted in β-carotene high retention.

scholarly journals Kajian Strategi Pemasaran Ubi Cilembu (Kasus di Desa Cilembu, Kecamatan Pamulihan, Kabupaten Sumedang)

2019 ◽  
Vol 14 (1) ◽  
pp. 69-75
Author(s):  
Cordelia Ervina ◽  
Musa Hubeis ◽  
Nora H. Pandjaitan
Keyword(s):  
Marketing Strategy ◽  
Sweet Potato ◽  
Secondary Data ◽  
External Factors ◽  
Raw Material ◽  
Sweet Potatoes ◽  
Factors Affecting ◽  
Medium Scale ◽  
Processed Products ◽  
Internal And External Factors

One of areas which producing sweet potato is Cilembu Village, located in Pamulihan Subdistrict, Sumedang Regency.  The sweet Potato is famous as ubi Cilembu. The objectives of this research were to identify internal and external factors affecting raw material availability and continuity of marketing system of sweet potato Cilembu and to recommend alternative of effective and efficient marketing strategy of sweet potato Cilembu. This research used purposive sampling and also primary and secondary data. Respondents consisted of 30 people from 107 population of sweet potatoes Cilembu in Cilembu village. Analysis was conducted using IFE and EFE matrix, internal-external (IE) matrix, SWOT and QSPM method. From several strategies by using QSPM method, it had chosen one strategy to boost Cilembu sweet potato marketing by KUCP. The strategy was to encourage efforts in creating processing business medium scale of Cilembu sweet potatoes in order to get competitive processed products.

scholarly journals Hidrolisis serat selulosa dalam buah bintaro sebagai bahan baku bioetanol

2018 ◽  
Vol 11 (1) ◽  
pp. 26
Author(s):  
Tony Handoko ◽  
G Suhandjaja ◽  
H Muljana
Keyword(s):  
Substrate Concentration ◽  
Cellulose Fiber ◽  
Extreme Environment ◽  
Enzyme Hydrolysis ◽  
Raw Material ◽  
Bioethanol Production ◽  
Hydrolysis Time ◽  
Optimum Time ◽  
Glucose Content ◽  
Enzyme Solution

Cellulose Fiber Hydrolysis of Bintaro Fruit as Bioetanol Raw Material Sea mango Cerbera odollam) is commonly planted to provide shade on roadsides. It can grow in an extreme environment and is easily found throughout Indonesia. The fruit will change its color after being peeled which indicates glucose content. It shows that the fruit has a value as a source for bioethanol production. The purposes of this research were to determine the optimum hydrolysis time and substrate concentration and the contents of lignin and cellulose. The benefits of this research were information about cellulose and lignin contents, optimum time and substrate concentration in enzyme hydrolysis, and an alternative utilization of sea mango as a prospective source in bioethanol production. The research methods consists of analyzing cellulose and lignin contents, determining the dilution of enzyme solution, the optimum time and the optimum substrate concentration in enzyme hydrolysis. Cellusoft L was used in hydrolysis with 5 g/L buffer concentration. The result showed that diluting enzyme solution would reduce the yield of glucose. The optimum time for enzyme hydrolysis is 72 hours and the optimum substrate concentration is 80 g/L. Cellulose and lignin contents are 36.945% and 38% respectively. Keywords: bioethanol, cellulose, enzyme hydrolysis, sea mango (Cerbera odollam)AbstrakPohon bintaro (Cerbera odollam) merupakan tanaman yang sering digunakan sebagai tanaman peneduh. Tanaman ini dapat tumbuh di lingkungan ekstrim dan banyak tersebar di Indonesia. Buah bintaro yang telah dikupas akan mengalami perubahan warna menjadi coklat yang menunjukkan adanya kandungan glukosa, yang berarti memiliki potensi sebagai sumber bioetanol. Tujuan penelitian ini adalah untuk mengetahui waktu dan konsentrasi substrat optimum yang memberikan perolehan glukosa tertinggi dan banyaknya kandungan selulosa dan lignin dalam buah bintaro. Manfaat penelitian ini adalah mendapatkan data kandungan selulosa dan lignin buah bintaro dan menambah pengetahuan berkaitan dengan proses hidrolisis enzim buah bintaro, berupa waktu hidrolisis optimum enzim dan konsentrasi substrat optimum, serta memberikan alternatif pemanfaatan buah bintaro sebagai salah satu bahan baku yang berprospek dalam pembuatan bioetanol. Metode penelitian terdiri dari penentuan kandungan selulosa dan lignin, penentuan pengenceran larutan enzim, waktu optimum dan konsentrasi substrat optimum dalam hidrolisis enzim. Hidrolisis menggunakan enzim Cellusoft L dengan konsentrasi 5 g/L buffer sitrat. Hasil penelitian menunjukkan bahwa pengenceran larutan enzim saat hidrolisis enzim akan mengurangi perolehan glukosa. Waktu hidrolisis optimum enzim buah bintaro adalah 72 jam dan konsentrasi substrat optimum adalah 80 g/L. Kandungan selulosa dan lignin buah bintaro berturut-turut adalah 36,945% dan 38%.Kata kunci: bioetanol, buah bintaro (Cerbera odollam), hidrolisis enzim, selulosa

scholarly journals PENGARUH PROSES DELIGNIFIKASI PADA PRODUKSI GLUKOSA DARI TONGKOL JAGUNG DENGAN HIDROLISIS ASAM ENCER

Konversi ◽  
2013 ◽  
Vol 2 (2) ◽  
pp. 17
Author(s):  
Primata Mardina ◽  
Adelina I. Talalangi ◽  
Jhon F. M. Sitinjak ◽  
Andri Nugroho ◽  
M. Reza Fahrizal
Keyword(s):  
Acid Hydrolysis ◽  
Liquid Fraction ◽  
Acid Catalyst ◽  
Glucose Production ◽  
Corn Cob ◽  
Dilute Acid Hydrolysis ◽  
Glucose Content ◽  
Hydrolysis Process ◽  
Alkali Hydrolysis ◽  
Hydrolysis Of

Hidrolisis asam encer dari tongkol jagung untuk produksi glukosa mengalami hambatan karena adanya lignin. Penelitian ini bertujuan mengetahui pengaruh dari proses perusakan lignin dengan proses menggunakan hidrolisis basa Hidrolisis basa yang biasa disebut delignifikasi dilakukan pada suhu 55oC selama 4 jam dengan konsentrasi larutan basa, yaitu NaOH 5%, 10% dan 15% berat Hasil menunjukkan bahwa konsentrasi NaOH yang optimal untuk pengurangan lignin adalah 15% berat dengan persentase pengurangan sebesar 89,3%. Tongkol jagung yang tidak dan telah didelignifikasi dengan NaOH kemudian dihidrolisis dengan menggunakan H2SO4 0,75% berat dengan waktu dan suhu yang berbeda dan dianalisis kadungan glukosanya. Glukosa yang dihasilkan dari partikel tongkol jagung yang didelignifikasi dengan NaOH 15% wt lebih besar daripada tongkol jagung yang tidak didelignifikasi untuk semua variasi waktu dan suhu. Hal ini menunjukkan proses delignifikasi untuk merusak struktur lignin akan meningkatkan reaktivitas dari katalis asam pada proses hidrolisis asam encer. Kata kunci: Tongkol jagung, lignin, delignifikasi, hidrolisis asam encer, glukosa. The dilute acid hydrolysis of corn cob for glucose production has faced barrier because of lignin. In this research, an effective lignin destruction process by alkali hydrolysis which affects glucose production from corn cob as lignocellulose biomass was investigated. Alkali hydrolysis called delignification was performed at 55oC for 4 hr with various NaOH concentrations: 5%, 10% and 15%-wt. It was found that optimal NaOH concentration for lignin reduction was 15%-wt and the percentage of reduction was 89.3%. The untreated and NaOH 15%-wt treated solid fraction were hydrolyzed by 0.75%-wt H2SO4 with various times and temperatures. The glucose content of liquid fraction from hydrolysis was analyzed. The result showed that the yield of glucose for NaOH 15% -wt treated corn cob was higher than that of untreated corn cob for various temperatures and operation times. It implied the destruction of lignin structure would enhance the reactivity of acid catalyst for diluted acid hydrolysis process. Keywords: Corn cob, lignin, delignification, acid dilute hydrolysis, and glucose

scholarly journals Inovasi Pangan Lokal Onde-Onde Berbahan Dasar Ubi Jalar Ungu.

2019 ◽  
Author(s):  
Ayu Dwi Utami
Keyword(s):  
Sweet Potato ◽  
Rice Flour ◽  
Raw Material ◽  
Traditional Food ◽  
Agricultural Commodity ◽  
Sweet Potatoes ◽  
The People ◽  
Glutinous Rice ◽  
Nutritional Needs ◽  
Food Reserves

Abstract Sweet potato is an annual (short-lived) plant and is classified into a type of sweet potato plant. After one production, this plant will die. Sweet potato as a carbohydrate-producing agricultural commodity has no doubt existed among the people. Even sweet potatoes are used as food reserves if the production of rice and corn is not sufficient. Sweet potatoes can meet the nutritional needs of the body's health due to its complete nutritional content. So that sweet potatoes can be used as raw material innovations for making dumplings. Besides this innovation also aims that these dumplings also have their own uniqueness. Onde-onde is a traditional food made from wheat flour or glutinous rice flour that is fried or boiled and the surface is sprinkled with rice. This traditional food came from Mojokerto, East Java, so Mojokerto was dubbed the "onde-onde city".

scholarly journals Production of Sugar From Sweet Sorghum Stems with Hydrolysis Method Using Trichoderma viride

2021 ◽  
Vol 13 (1) ◽  
pp. 121-127
Author(s):  
Melycorianda Hubi Ndapamuri ◽  
Maria Marina Herawati ◽  
V Irene Meitiniarti
Keyword(s):  
Trichoderma Viride ◽  
Glucose Production ◽  
Cellulose Content ◽  
Hydrolysis Time ◽  
Glucose Yield ◽  
Hydrolysis Method ◽  
Hydrolysis Process ◽  
Hydrolysis Of Cellulose ◽  
Hydrolysis Of ◽  
Bagasse Waste

Sorghum stem bagasse waste is one of the materials with high cellulose content. It can be utilized in glucose production through enzymatic hydrolysis of cellulose by Trichoderma viride. This study aims to determine sorghum stem bagasse’s potential in producing glucose, assessing the time and concentration of sorghum stem bagasse in the hydrolysis process to produce glucose optimally and following SNI. Hydrolysis was carried out using a concentration of 5%, 8%, and 11% sorghum stem bagasse for 10, 15, and 20 days. The results showed that sorghum stem bagasse waste could produce glucose with an average glucose yield of 10.09% to 24.40 %. There is a tendency that increasing substrate concentration and hydrolysis time will increase the yield of liquid glucose. The treatment of 5% concentration of sorghum stem bagasse with a long hydrolysis time of 10 days can produce the highest liquid glucose, namely 24.40% with total dissolved solids of 7.40% Brix, the ash content of 0.26%, but 47.54% water content has not met SNI standards. 

scholarly journals PEMBUATAN TEPUNG UBI UNGU DALAM UPAYA DIVERSIFIKASI PANGAN PADA INDUSTRI RUMAH TANGGA UKM GRIYA KETELAQU DI KELURAHAN PLALANGAN KECAMATAN GUNUNGPATI KOTA SEMARANG

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Ali Umar Dhani
Keyword(s):  
Sweet Potato ◽  
Raw Material ◽  
Exploratory Research ◽  
Potato Flour ◽  
Sweet Potatoes ◽  
Business Analysis ◽  
Medium Enterprise ◽  
Sweet Potato Flour ◽  
Purple Sweet Potato ◽  
Flour Production

Tulisan ini bertujuan untuk mengemukakan upaya diversifikasi pangan ubi ungu mulai dari proses produksi tepung ubi ungu dari proses persiapan bahan baku, proses pembutan tepung ubi ungu, penanganan produk akhir meliputi pengemasan, penyimpanan, analisis usaha dan pemasaran, kondisi sarana dan prasarana yang digunakan. Kegiatan dilaksanakan di Industri Rumah Tangga UKM Griya Ketelaqu di Kelurahan Plalangan Kecamatan Gunungpati Kota Semarang. Metode yang penelitian yang digunakan adalah deskriptif eksploratif  dengan melakukan observasi secara langsung, interview (wawancara)  dan studi pustaka yang berkaitan dengan tepung ubi ungu.  Hasil penelitian menyimpulkan bahwa UKM Griya Ketelaqu memiliki kemampuan mengolah ubi ungu menjadi produk tepung ubi ungu.  Selain olahan tepung ubi ungu UKM Griya Ketelaqu juga mengolah berbagai macam jenis tepung-tepungan seperti tepung umbi-umbian, tepung sayur-sayuran, tepung buah-buahan serta mengolah olahan dari ubi lainnya seperti timus, nugget, peyek tumpi dan singkong keju. Dalam setiap produksi UKM Griya Ketelaqu membutuhkan rata-rata 50 kg ubi ungu dan menghasilkan tepung ubi ungu 20 kg. Dengan demikian nilai rendemen tepung ubi ungu sebesar 40%. Keuntungan per bulan dari usaha produksi tepung ubi ungu oleh UKM Griya Ketelaqu  adalah   Rp. 905.000,- perbulan.. Tepung Ubi Ungu dapat menjadi alternatif diversifikasi pangan karena memiliki kemampuan menghasilkan beberapa produk pangan yang disukai oleh masyarakatKata Kunci: ubi ungu, diversifikasi, tepung, usaha kecil menengahAbstractThis paper aims to highlight the effort of purple sweet potatoes flour diversification beginning from the process of producing sweet potatoes flour from the preparation of raw  material, the process of making sweet potatoes  flour, the handling of the final product including packaging, storage, business analysis and marketing, the condition of the facilities and infrastructure used. The activity was carried out at the UKM (Small Medium Enterprise) Griya Ketelaqu Home Industry in Plalangan Village, Gunungpati District, Semarang. The method used is descriptive exploratory research by direct observation, interviews with the owner and literature studies relating to purple sweet potato flour. The results of the study concluded that UKM Griya Ketelaqu  had the ability to process purple sweet potatoes into purple sweet potato flour products. In addition to processed purple sweet potatoes flour UKM Griya Ketelaqu also processes various types of flour such as tuber flour, vegetable flour, fruit flour as well as processing processed from other sweet potatoes such as timus, nuggets, tofu and cassava cheese. Thus the yield of purple sweet potato flour by 40%. The profit per month from the purple sweet potato flour production business by Griya Ketelaqu UKM is Rp.605,000 per month.  Purple sweet poatoes flour can be an alternative food diversification because it has the ability to produce some food products that are preferred by the community.Keywords: purple sweet potatoes, diversified, flour, small and medium enterprise

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