scholarly journals Evaluation and optimization of disc grating machine for sago starch production (Metroxylon spp.).

Author(s):  
Wan Mohd Fariz Bin Wan Azman ◽  
Rosnah Shamsudin ◽  
Mohd Zuhair Mohd Nor ◽  
Azman Hamzah

The production of Sago starch involving multiple processes and the grating process was the most important since the recovery of sago starch was directly affected. In order to produce a finer size of grated sago and high starch recovery, a new design of sago disc grating machine has been developed. A evaluation was performed to determine the optimum operation on the basis of the feeding rate and grating speed input on the sago disc grating machine, and the starch recovery as the output. The grated sago was dried and sieved at different sizes to analysis the size. A model equation was developed to predict the starch recovery. As the result, the optimum feeding rate was 0.1 m/min with 1500 rpm of grating speed produce 23.57% of sago starch recovery. Studies show that the feeding rate and grating speed affects the size of the grated sago produced (P<0.01) and directly affects starch recovery.

2007 ◽  
Vol 70 (12) ◽  
pp. 2868-2872 ◽  
Author(s):  
A. R. GREENHILL ◽  
W. A. SHIPTON ◽  
A. D. OMOLOSO ◽  
B. AMOA ◽  
J. M. WARNER

Sago starch is an important food in lowland Papua New Guinea. Extraction of the starch from the palm and storage were performed by way of traditional methods that have been used for thousands of years. Currently, very little is known about the microbiology of sago starch. Sago samples were collected from areas of high starch utilization and analyzed for the presence of bacterial pathogens and indicator organisms. Storage methods and duration were recorded at the time of collection, and pH and water activity on arrival at the laboratory. Sago starch was found to harbor high levels of fecal contamination, as well as various food pathogens including Salmonella, Bacillus cereus, and coagulase-positive staphylococci. Clostridium perfringens was only present infrequently in samples and in very low numbers, while Listeria monocytogenes was not isolated from sago starch. The presence of high levels of fecal contamination in sago starch is of particular concern, and may contribute to diarrheal disease in rural Papua New Guinea.


Buletin Palma ◽  
2020 ◽  
Vol 21 (1) ◽  
pp. 29
Author(s):  
Hengky Novarianto ◽  
Ismail Maskromo ◽  
Meity A Tulalo ◽  
Elsje T Tenda ◽  
Jeanette Kumaunang ◽  
...  

<p>Sago development requires plant material as superior seedlings for rehabilitation and replanting. Until 2016 two superior sago varieties were released, namely Molat sago varieties from Maluku in 2011 and Selatpanjang Meranti sago varieties from the Meranti Islands Regency, Riau in 2013. Indragiri Hilir Regency, Riau Province is one of the areas of natural sago growth, and producing sago starch . This district has the opportunity to develop sago palms as a potential and regional producer. In connection with that, a research has been conducted which aims to find out and obtain superior sago species from Indragiri Hilir Regency, from 2015 to 2017. The research method was conducted by observing the sago population with high yield potential. For the observation, 10 sample trees every year were selected in each location/village in Gaung Anak Serka District, Indragiri Hilir Regency, Riau Province. Data observations were carried out on the morphological characteristics of sago and suckers, sago starch production potential, and proximate analysis. Observation data were analyzed for diversity, standard deviation and coefficient of variance. Morphological observations and production of Bestari sago starch obtained an average leaf length of 8.00 m, diameter of the diameter of bottom stem 47.37 cm, circumference of the bottom stem 148.52 cm, the number of leaf scars on the leaf-free stem 53.23 scars, the number leaves on the crown 16.98 strands, the distance of leaf scar 12.42 cm, the length of the petiole 231.00 cm, the width of the petiole 9.25 cm, the thickness of the petiole 3.93 cm, the length of the rachis 660.33 cm, the length of the leaflets 155.59 cm, leaflets width 9.39 cm, and dry starch yield 254.94 kg per palm. Proximate analysis results on Bestari sago starch obtained an average water content of 13.00%, ash content of 0.60%, fat content of 0.83%, protein content of 0.84%, crude fiber content of 0.29%, and carbohydrate content was 84.34%, with 350 calories, Vitamin C 0.96 mg/100 gr sago starch, and total sugar around 1.43%. Hoping that sago Bestari variety will become the suckers resources for sago development in Indragiri Hilir Region, Riau Province and other region of Indonesia.</p><p> </p><p><strong>ABSTRAK </strong></p><p>Pengembangan sagu membutuhkan bahan tanaman sebagai bibit unggul untuk rehabilitasi dan penanaman kembali. Sampai tahun 2016 telah dilepas dua varietas sagu unggul, yaitu varietas sagu Molat asal Maluku tahun 2011 dan varietas sagu Selatpanjang Meranti asal Kabupaten Kepulauan Meranti, Riau tahun 2013. Kabupaten Indragiri Hilir, Provinsi Riau adalah salah satu daerah pertumbuhan sagu alami dan penghasil pati sagu. Kabupaten ini memiliki peluang untuk dikembangkan tanaman sagu sebagai potensi dan penghasilan daerah. Sehubungan dengan itu, maka telah dilakukan penelitian yang bertujuan untuk mengetahui dan mendapatkan jenis sagu unggul asal Kabupaten Indragiri Hilir, sejak tahun 2015 sampai tahun 2017. Metode penelitian dilakukan dengan observasi terhadap populasi sagu potensi hasil tinggi. Untuk pengamatan telah dipilih sebanyak 10 pohon contoh setiap tahun di setiap lokasi/Desa di Kecamatan Gaung Anak Serka, Kabupaten Indragiri Hilir, Provinsi Riau. Pengamatan data dilakukan terhadap karakteristik morfologi tanaman sagu dan anakan, potensi produksi pati sagu, dan analisis proksimat. Data pengamatan dianalisis keragaman, simpangan baku dan koefisien keragamannya. Hasil pengamatan morfologi dan produksi pati sagu Bestari diperoleh rata-rata panjang bebas daun 8,00 m, diameter batang bawah 47,37 cm, lingkar batang bawah 148,52 cm, jumlah bekas pelepah daun pada batang bebas daun 53,23 buah, jumlah daun pada mahkota 16,98 helai, jarak antar pelepah 12,42 cm, panjang pelepah 231,00 cm,lebar pelepah 9,25 cm, tebal pelepah 3,93 cm, panjang daun 660,33 cm, panjang anak daun 155,59 cm, lebar anak daun 9,39 cm, dan produksi pati kering 254,94 kg per pohon. Hasil analisis proksimat pada pati sagu Bestari diperoleh rata-rata kadar air 13,00%, kadar abu 0,60%, kadar lemak 0,83%, kadar protein 0,84%, kandungan serat kasar 0,29%, dan kadar karbohidrat adalah 84,34%, dengan 350 kalori, Vitamin C 0,96 mg/100 gr pati sagu, dan total gula sekitar 1,43%. Diharapkan varietas sagu Bestari menjadi sumber benih untuk pengembangan sagu di Kabupaten Indragiri Hilir, Riau dan daerah Indonesia lainnya</p>


2017 ◽  
Vol 13 (2) ◽  
pp. 84-93
Author(s):  
Meilisa Nusawakan ◽  
Pieter Kunu ◽  
Marcus Luhukay

This study aims to map the condition of land where sago plant grows, to determine the suitability level of sago plant land and to describe the potential of sago and sago consumption patterns by the community. The method used in this research is survey method with distance observation free survey and pit profile observation type. The condition of the land where sago plants grow is quite good. The types of sago found are sagu tuni (Metroxylon rumphii Mart.), Sagu Ihur (Metroxylon sylvestre Mart.) And sagu molat (Metroxylon sagu Rottb.). The size of sago palm in Rumahkay Village is 55.5 Ha, the average number of cutting trees (MT) 24 trees / Ha / yr with average production of wet starch per tree sebesr 700 kg. Total dry starch production at the study site was 449.55 tons. The pattern of community consumption of sago 10 percent, the combination of sago, tuber and banana by 20 percent, the combination of sago, tubers, bananas and rice by 55 percent and rice 10 percent. Types of confectionery and food based sago starch consumed is papeda, sago plate, sinoli and karu-karu. Frequency and time to eat sago as main food and food complement of 65% is as much as 2 times in a day that is time of morning and afternoon. Then 3 times as much as 25% and once as much as 10%. In general, people who consume sago once a day is at breakfast or afternoon in the form of snacks (sago plate, sinoli, karu-karu). Keywords: condition, land, sago   ABSTRAK Penelitian ini bertujuan untuk memetakan kondisi lahan tempat tumbuh tumbuhan sagu, menetapkan tingkat kesesuaian lahan tumbuhan sagu serta mendeskripsikan potensi sagu dan pola konsumsi sagu oleh masyarakat. Metode yang digunakan dalam penelitian ini adalah metode survei dengan jarak observasi survei bebas dan tipe observasi profil pit. Kondisi lahan tempat tumbuh tumbuhan sagu tergolong baik. Jenis sagu yang ditemukan adalah sagu Tuni (Metroxylon rumphii Mart.), sagu Ihur (Metroxylon sylvestre Mart.) dan sagu Molat (Metroxylon sagu Rottb.). Luas lahan sagu di Desa Rumahkay adalah 55,5 Ha, rata-rata jumlah pohon masak tebang (MT) 24 pohon/Ha/thn dengan rata-rata produksi pati basah per pohon sebesr 700 kg. Total produksi pati kering pada lokasi penelitian adalah 449,55 ton. Pola konsumsi masyarakat terhadap sagu 10 persen, kombinasi sagu, umbian dan pisang sebesar 20 persen, kombinasi sagu, umbian, pisang dan beras sebesar 55 persen serta beras 10 persen. Jenis penganan dan pangan berbahan dasar pati sagu yang dikonsumsi adalah papeda, sagu lempeng, sinoli dan karu-karu. Frekwensi dan waktu makan sagu sebagai pangan utama maupun pangan pelengkap sebesar 65% adalah sebanyak 2 kali dalam sehari yaitu waktu pagi dan siang. Kemudian 3 kali sebanyak 25% dan satu kali sebanyak 10%. Pada umumnya mereka yang mengkonsumsi sagu satu kali dalam sehari adalah pada saat sarapan pagi atau sore hari dalam bentuk penganan (sagu lempeng, sinoli, karu-karu). Kata kunci: kondisi, lahan, sagu


2018 ◽  
Vol 917 ◽  
pp. 32-36 ◽  
Author(s):  
Bahruddin ◽  
Zwilla Oktoriana Hendri ◽  
Anugerah Rifaldi ◽  
Annur Fauzi Syaputra ◽  
Ummy Aisyah Rochaeni

Sago (Metroxylon spp) is one of plant that contains high starch, so it has potential to be utilized as raw material for biopolymer production. This study aims to compare the properties and morphology of sago starch-based biopolymers reinforced by different filler types, including clay, cellulose, zinc oxide and chitosan. Biopolymer sample was prepared at 75 °C with ratio of water to the starch of 10 ml/gr, glycerol content of 0.1 ml/gr of the starch and filler content 6% w/w. The testing included tensile, water uptake and biodegradability properties according to ASTM D882, ASTM D570 and DIN EN ISO 846 standards, respectively. Other testing also conducted for morphology by using scanning electron microscope (SEM). The results showed that biopolymer with chitosan filler has better tensile, water uptake and biodegrability properties compared to other filler type, with tensile stregth of 11 MPa, elongation at break of 9%, water uptake of 10% and biodegrability of 40%. The SEM micrograph shows that the filler still has an agglomerated portion in the starch matrix. Increasing the biopolymer properties is still possible by improving the morphology.


2019 ◽  
Vol 1 (2) ◽  
pp. 74-77
Author(s):  
Merry Dawapa

This study aims to determine the utilization of sago starch production on sago processed products at 5 times the potential of sago in merauke district. Data were analyzed descriptively, the population in this study were 5 districts with high productivity of sago farming in Merauke district, namely land sloping districts, curates, eligobel, ulilin and muting. Site selection by purposive sampling or deliberately. The results of the study showed that the five districts were not optimal for developing processed sago products due to lack of knowledge, expertise and limitations of technology adoption.   Keywords: Local Farmers, Productivity, Optimization, Sago


2019 ◽  
Vol 20 (11) ◽  
pp. 159-166
Author(s):  
Mega Yusuf ◽  
Muhammad Romli ◽  
Suprihatin Suprihatin ◽  
Edi Wiloso

2021 ◽  
Vol 8 (01) ◽  
pp. 33-40
Author(s):  
Liska Ayulia ◽  
MHB Djoefrie ◽  
Yunus Arifien

Sago (Metroxylon spp.) is the world’s highest starch producer that have high productivity. Sago starch, however, is still underutilized compared to other starch. Sago can produce dry starch of 20-40 ton per ha per year. Indonesia has the largest sago area in the world with more than 90% of the world’s total sago area. Sago have high species diversity and not all of them have the same starch-producing capability. This research was conducted to gather information on the morphological characters and starch production potentials of several types of sago in Meranti Islands Regency, Riau Province, Indonesia, especially in Bandul, Mengkirau, Tanjung Peranap, and Bagan Melibur. Three different types of sago in Kepulauan Meranti Regency, Riau, has been identified, namely Beremban, Meranti and Sangka. The morphology and starch production of different types of sago vary depending on environmental conditions, including soil types. Beremban Sago collected from Bandul Village were found to have the highest starch content, therefore it has potentials to be developed for starch production in Indonesia.


2017 ◽  
Vol 100 (11) ◽  
pp. 8995-9006 ◽  
Author(s):  
T.S. Dennis ◽  
F.X. Suarez-Mena ◽  
T.M. Hill ◽  
J.D. Quigley ◽  
R.L. Schlotterbeck

2015 ◽  
Vol 35 (6) ◽  
pp. 551-563 ◽  
Author(s):  
Mohammad Dalour Hossen Beg ◽  
Shaharuddin Kormin ◽  
Mohd Bijarimi ◽  
Haydar U. Zaman

Abstract Degradable native low density polyethylene (LDPE) and modified LDPE films containing 5–30 wt% of sago starch, and LDPE with prodegradant additives in the form of a master batch (MB) in the amounts of 30% starch were prepared by twin screw extrusion followed by injection molding. Studies on their mechanical properties such as tensile strength and elongation at break and biodegradation were carried out by tensile test and exposure to hydrolysis, fungi environment as well as by natural weathering and burial in soil. The presence of high starch contents had an adverse effect on the tensile properties of the blend films. High starch content was also found to increase the rate of biodegradability of the films. The characteristic parameters of the environment were measured during the period of degradation and their influence on degradation of LDPE was discussed. Changes in weight, morphology, thermogravimetric analysis (TGA) and tensile properties of polymer samples were tested during the experiment performed.


Agrotek ◽  
2018 ◽  
Vol 2 (3) ◽  
Author(s):  
Darma Darma

Papua and West Papua Provinces have a very large potential of sago. Approximately 994.000 hectares, mostly natural sago forest was existed in these areas. Sago starch has long been important source of nutrition throughout Papua. Product of sago palm is not only starch as source of carbohydrate for foodstuff, but also for basic material of industries such as paper, plywood, hardboard, and food industries. Traditional sago processing have been done by local people was very labourish and inefficient. The effort to increase sago starch production could be carry out by introducing mechanical sago processing equipment. The objective of this research was to modify cylinder type of sago rasper powered by internal combustion engine. The result was variant-1 of mechanical sago rasper. In general, most component of variant-1 almost the same with former prototype except the size of cylinder�s teeth. Variant-1 has bigger cylinder�s teeth than former prototype one. The performance of variant-1 are (1) effective rasper capacity 418 kg per hour, (2) percentage of starch yield was 38,23%, and (3) starch losses in hampas is 4%.


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