scholarly journals Characteristics of avocado (Persea americana) and kluwih (Artocarpus camansi) seeds starch with different extraction methods

2022 ◽  
Vol 951 (1) ◽  
pp. 012095
Author(s):  
E Indarti ◽  
Nurlaila ◽  
M Muzaifa ◽  
S Noviasari ◽  
Z F Rozali ◽  
...  
Keyword(s):  
Starch Content ◽  
Extraction Methods ◽  
Persea Americana ◽  
Raw Material ◽  
Sodium Metabisulfite ◽  
Starch Properties ◽  
High Starch Content ◽  
High Starch ◽  
Starch Yield ◽  
Avocado Seed

Abstract Seed from avocado (Persea Americana) and kluwih (Artocarpus camansi) fruit are waste and by product from processing fruit. Due to the high starch content from both seeds, there are many extractions process have been applied. The immersed raw material in sodium metabisulfite solution affected to starch properties. The purpose of this study is to characterize of starch extracted with and without immersed in sodium metabisulfite solution. The results showed that the starch yield by immersed in alkaline solution was 21.6% for avocado seed starch and 24.4% for kluwih seed starch, while yield without immersed in sodium metabisulfite solution was 17.5% and 18,2% for avocado seed starch and kluwih seed starch, respectively. The starch content with sodium metabisulfite immersion process of avocado seed and kuwih seed were 79.26% and 72.62%, respectively. Meanwhile without the immersion process resulted starch of 75.13 and 67.30%, in avocado seed starch and kluwih seed starch, respectively. Furthermore, XRD and FTIR analysis were also carried out on starch to see the crystallinity character and functional groups contained in the extracted starch.

scholarly journals Characteristics of sweet potatoes flour used as emergency food based on the type of varieties and the duration of fermentation

2018 ◽  
Vol 1 (1) ◽  
pp. 48-56
Author(s):  
Marleen Sunyoto ◽  
◽  
Roby Andoyo ◽  
Keyword(s):  
Starch Content ◽  
Block Design ◽  
Raw Material ◽  
Sweet Potatoes ◽  
Physical Chemical ◽  
Randomized Block Design ◽  
High Starch Content ◽  
Good Potential ◽  
High Starch ◽  
Swelling Volume

Sweet potato breeding at the Padjadjaran University farmland has produced new clones of sweet potatoes, Awachy 5 and Biang Varieties. Both clones contain high starch content, 25.46% and 15.96% respectively, having a good potential to be processed into flour as raw material for emergency food. However, due to poorly functional and amylograph characteristics, the clones need to be modified, one of which through fermentation. The objective of the study was to select the best varieties type of sweet potatoes and to determine the appropriate duration of fermentation to produce fermented sweet potatoes with the best physical, chemical and amylograph characteristics. The research method used was Randomized Block Design, consisting of 8 treatments and 3 repetitions. Awachy 5 and Biang Varieties were fermented for 0, 24, 48 and 72 hours respectively. The results showed that the fermented sweet potatoes flour of Awachy 5 with 72 hours of fermentation have produced the best characteristics of physical, chemical and amylograph, 7.21 ml/g swelling volume, 8.4% solubility, 84.37oC initial gelatinization temperature, 5092 cP peak viscosity, 2471 cP breakdown viscosity, 1089 cP setback viscosity, 68.04% starch content and 3.51% water content.

scholarly journals STUDI OPTIMALISASI KOMPOSISI GLISEROL DAN KITOSAN TERHADAP KARAKTERISTIK SIFAT FISIK PLASTIK BIODEGRADABLE DARI LIMBAH NASI AKING DAN TEPUNG TAPIOKA

2021 ◽  
Vol 15 (1) ◽  
pp. 27
Author(s):  
Nisa Nurhidayanti ◽  
Indah Yulian Kusuma Wardani ◽  
Nur Ilman Ilyas
Keyword(s):  
Starch Content ◽  
Rice Flour ◽  
Biodegradable Plastics ◽  
Biodegradable Plastic ◽  
Raw Material ◽  
Tapioca Starch ◽  
Public Consumption ◽  
Composition Variation ◽  
High Starch Content ◽  
High Starch

Aking rice is rice waste that is no longer suitable for public consumption, however, the high starch content of aking rice can be used as a raw material for making biodegradable plastics. Good biodegradable plastic made from cassava starch and rice flour, to increase its elasticity and extensibility it is necessary to add chitosan additives and glycerol plasticizers. This study aims to determine the optimum conditions for the composition of glycerol and chitosan for the physical properties of biodegradable plastics made from aking rice and tapioca starch. Biodegradable plastics in this study were made with 3 grams of aking rice flour and 7 grams of tapioka flour with the addition of variations in the composition of chitosan (3 grams, 5 grams, and 7 grams) and the addition of variations in the composition of glycerol (2 ml, 4 ml, 6 ml, and 8 ml). As a result, the highest tensile strength value at 7: 2 composition variation is 41.29 MPa, the highest elongation percentage at 3: 8 composition variation is 135.8%, the highest water resistance at 7: 8 composition variation is -206%, the highest percent water absorption and the fastest biodegradation process at a variation of the composition of 3: 2, namely 1603% and completely degraded on the 4th day.Keywords: aking rice, biodegradable plastic, chitosan, glycerol and tapioca starch.

scholarly journals Preparasi Dan Karakterisasi Edible Film Dari Poliblend Pati Sukun-Kitosan

2013 ◽  
Vol 3 (2) ◽  
Author(s):  
Wini Setiani ◽  
Tety Sudiarti ◽  
Lena Rahmidar
Keyword(s):  
Tensile Strength ◽  
Water Uptake ◽  
Water Resistance ◽  
Starch Content ◽  
Raw Material ◽  
Edible Film ◽  
High Starch Content ◽  
High Starch ◽  
Grey Colour

Abstrak   Plastik biodegradable dan terbuat dari bahan terbarukan seperti edible film merupakan salah satu solusi permasalahan lingkungan. Bahan baku utamanya yaitu pati, karena keberadaannya melimpah serta beragam di Indonesia, salah satunya pati sukun yang memiliki kandungan pati cukup tinggi (60 %). Namun edible film berbahan dasar pati saja memberikan sifat mekanik dan ketahanan air yang masih rendah. Pada penelitian ini akan dipreparasi edible film dari poliblend pati sukun-kitosan dengan plasticizer sorbitol. Metode yang dilakukan yaitu preparasi dan karakterisasi pati sukun kemudian preparasi dan karakterisasi edible film. Hasil karakterisasi pati sukun yang diperoleh yaitu kadar pati total 76,39 %, kadar amilosa dan amilopektin berturut-turut 26,76 % dan 73,24 %, suhu gelatinisasi pati sukun 73,98 ºC, kadar air 22,38 % serta derajat kecerahan yang menunjukkan karakteristik cerah dan berwarna abu-abu pucat. Hasil karakterisasi edible film menunjukkan, dengan bertambahnya kitosan maka kuat tarik dan ketahanan air cenderung meningkat. Secara umum hasil terbaik edible film adalah pada formulasi pati sukun-kitosan 6:4 dengan nilai water uptake sebesar 212,98 %, nilai kuat tarik sebesar 16,34 MPa, nilai elongasi sebesar 6,00 % dan modulus young sebesar 2,72 MPa. Meskipun demikian, hasil analisis morfologi edible film pada formulasi pati sukun-kitosan 6:4 masih terdapat pori dan retakan.   Kata kunci : edible film, pati sukun, kitosa.   Abstract   Biodegradable and renewable plastic such as edible film is one of solution the environmental problem. The main raw material is from starch, because of it is abundant and varied in Indonesia, one of them is breadfruit starch which has enough high starch content (60 %). But edible film based on starch give less mechanical properties and less water resistance. In this research the edible film was made from poliblend of breadfruit starch-chitosan with sorbitol addition. The Method was done, preparation and characterization of breadfruit starch then preparation and characterization of edible film. The characteristic result of breadfruit starch was obtained for total starch content 76.39 %, content of amylose and amylopecktin were 26.76 % and 73.24 % respectively, the gelatinitation temperature of breadfruit starch was 73.98 ºC, water content 22,38 % and the degree of brightness showed bright characteristic and pale grey colour. The characteristic result of edible film showed the increasing of chitosan concentration, the tensile strength and water resistance tended to rise. Generally the best result of edible film was on breadfruit starch-chitosan formulation 6:4 g/g by the value of water uptake was 212.98 %, tensile strength was 16.34 MPa, elongation was 6,00 % and modulus young was 2,72 MPa. However, the result of mhorphology analysis showed that the edible film of breadfruit starch-chitosan formulation 6:4 are still pores and cracks.   Keywords : edible film, breadfruit starch, chitosan.

scholarly journals Arpanın İnsan Gıdası Olarak Değerlendirilmesi

2013 ◽  
Vol 1 (2) ◽  
pp. 51
Author(s):  
Mehmet Köten ◽  
Sabri Ünsal ◽  
Ayhan Atlı
Keyword(s):  
Animal Feed ◽  
Starch Content ◽  
Human Nutrition ◽  
Raw Material ◽  
Blood Cholesterol ◽  
Soluble Fiber ◽  
Human Food ◽  
High Starch Content ◽  
The World ◽  
High Starch

Barley, as animal feed, raw material for malting and human food, constitute an important part among cereal sources in the world. Majority of barley that produced both in Turkey and other countries of the world, is being used as animal feed. Poor baking quality, taste and appearance of barley restricted its use in human nutrition. However, recently high protein, fiber, especially β-glucan and high starch content appeal to food industry. Many scientific researches established that β-glucan, a soluble fiber, has an effect in healing coronary-hearth diseases, lowering blood cholesterol level, balancing blood sugar level, preventing obesity. Being a healthy cereal that can be used in various purposes, and an additive in many food products, barley is considered a very promising cereal, and research to increase possibilities of its use in human nutrition is being increased. In the literature, there has been researches on making noodles, bulgur, kavut (roasted cereal), breakfast cereals. In this study the researches relating to evaluation of barley, importance of which is increased every day, as human food was reviewed.

scholarly journals The Bioprocessing Quick Wins from Avocado Fruit in Uganda

2020 ◽  
Vol 5 (5) ◽  
pp. 582-587
Author(s):  
Emmanuel Baidhe ◽  
Nicholas Kiggundu ◽  
Noble Banadda
Keyword(s):  
Industrial Development ◽  
Culture Media ◽  
Biogas Production ◽  
Starch Content ◽  
Persea Americana ◽  
Raw Material ◽  
Biodiesel Production ◽  
Avocado Fruit ◽  
Pharmaceutical Industries ◽  
Avocado Seed

Bioprocessing can help redeem the economic value for avocado (Persea americana) in Uganda. This study reviews the virgin potential of avocado bioprocessing in Uganda. Avocado consists of flesh, seed, and peel. The review indicates that the waste seed and peel are vital for development of high-value products. Both the edible part and waste (peel and seed) can be used for biogas production through a solid-state fermentation process. Biodiesel can be developed using avocado seed oil through a process called transesterification. Avocado oil is a better alternative for biodiesel production compared to waste cooking oil as it requires no further conversions processes for transforming fatty acids to esters. The starch-rich avocado seed is a suitable substrate for bioethanol, pigment and starch production. The high starch content places the avocado fruit as a potential (i) raw material for the production of bioplastics (ii) substrate for bacterial culture media production as opposed to potatoes, cereals, and cassava that double as a staple food. Avocado seeds can also be used for the production of antioxidants relevant for preventing enzymatic browning, thereby increasing product shelf life. Despite the quick wins, there is a need for increased research, financing, personnel training and development of appropriate policies to spur the benefits and untapped potential of avocado bioprocessing in Uganda. The circular economy of avocado waste alone into high-value products could increase gains in the environment and stimulate industrial development especially the cosmetic, food and pharmaceutical industries in Uganda.

RNA Sequence Analysis of Cassava Varieties with High-Starch Content Using De Novo Assembly

2017 ◽  
Vol 37 (2) ◽  
pp. 517-529 ◽  
Author(s):  
Ya-Jing Guo ◽  
Xing-Lu Luo ◽  
Mao-Gui Wei ◽  
Zhao-Liang Liu ◽  
Wu-Jing Fan ◽  
...  
Keyword(s):  
Sequence Analysis ◽  
De Novo Assembly ◽  
De Novo ◽  
Starch Content ◽  
Rna Sequence ◽  
High Starch Content ◽  
High Starch ◽  
Cassava Varieties

scholarly journals Continuous Blown Film Preparation of High Starch Content Composite Films with High Ultraviolet Aging Resistance and Excellent Mechanical Properties

Polymers ◽  
2021 ◽  
Vol 13 (21) ◽  
pp. 3813
Author(s):  
Bowen Lin ◽  
Chengqiang Li ◽  
Fangping Chen ◽  
Changsheng Liu
Keyword(s):  
Mechanical Properties ◽  
Lignin Content ◽  
Starch Content ◽  
Composite Films ◽  
Oh Groups ◽  
Longitudinal Tensile Strength ◽  
High Starch Content ◽  
Aging Resistance ◽  
High Starch ◽  
Ultraviolet Aging

Starch/PBAT blown films with high ultraviolet aging resistance and excellent mechanical properties were prepared by introducing lignin with polyurethane prepolymer (PUP) as a starch modifier and physical compatibilizer and 4,4′–methylene diphenyl diisocyanate (MDI) as a crosslinker. Starch was modified by reacting the NCO groups of the PUP with the OH groups of the starch to form a carbamate bond. The mechanical properties, hydrophobic properties, ultraviolet barrier, ultraviolet aging properties and microscopic morphology of starch/PBAT films with different contents of lignin were investigated. The results showed that the starch/PBAT films were blown continuously. The addition of lignin did not decrease the mechanical properties. On the contrary, the film with 1% lignin possessed the excellent mechanical properties with longitudinal tensile strength of 15.87 MPa and the elongation at a break of 602.21%. In addition, the higher the lignin content, the better the UV blocking effect. The introduction of lignin did not affect the crystalline properties but improved the hydrophilic properties and sealing strength of the high starch content composite films.

scholarly journals Screening of Soybean Germplasm with High Starch Content

2014 ◽  
Vol 46 (1) ◽  
pp. 52-57 ◽  
Author(s):  
Sung Cheol Koo ◽  
Myeong Gi Jeon ◽  
Young Hoon Lee ◽  
Hyun-Young Kim ◽  
Beom Kyu Kang ◽  
...  
Keyword(s):  
Starch Content ◽  
Soybean Germplasm ◽  
High Starch Content ◽  
High Starch
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