scholarly journals PERBANDINGAN HIDROLISIS ENZIMATIS DAN ASAM TERHADAP PATI JAGUNG MANIS (Zea mays L.) DALAM PEMBUATAN GULA CAIR

2019 ◽  
Vol 7 (2) ◽  
pp. 58
Author(s):  
RTM Sutamihardja ◽  
Mia Azizah ◽  
Bekti Dwisepti Mafiana
Keyword(s):  
Zea Mays ◽  
Enzymatic Hydrolysis ◽  
Hydrochloric Acid ◽  
Acid Hydrolysis ◽  
Zea Mays L ◽  
Corn Starch ◽  
Sweet Corn ◽  
Alpha Amylase ◽  
High Carbohydrate ◽  
Alternative Sweetener

Comparison Hydrolisis of Enzymatic and Acid of  Sweet Corn Starch (Zea mays L.) in Liquid Sugar ProductionSweet corn starch (Zea mays L.) contains high carbohydrate that can be used for food and industrial purposes. Sweet corn starch can be used for liquid sugar as alternative sweetener by enzymatic or acid hydrolysis. The enzymatic hydrolysis was performed by treating the starch with alpha amylase for liquefaction and glucoamylase for saccharification, while acid hydrolysis was performed by mixing the starch with 1,0 N hydrochloric acid. According to the results, the yield of enzymatic hydrolysis is higher than acid hydrolysis. The highest yield of liquid sugar is 91,73% produced by enzymatic hydrolysis using alpha amylase 42µL and glucoamylase 42µL and 59,40% of reducing sugar. The yield of liquid sugar produced by acid hydrolysis using HCl 1,0 N is 78,55% and 31,48% of reducing sugar.Key words: Zea mays, starch, liquid sugar, hydrolisis of hydrochloric acid, hydrolisis of alpha amylase, hydrolisis of glucoamylaseABSTRAKPati jagung manis (Zea mays L.) mengandung karbohidrat cukup tinggi yang dapat dimanfaatkan untuk bahan pangan dan industri. Pati jagung manis dapat diolah menjadi gula cair dan digunakan sebagai pemanis alternatif melalui hidrolisis pati baik secara enzimatis atau asam. Hidrolisis enzimatis melalui tahap likuifikasi menggunakan alfa amilase dan tahap sakarifikasi menggunakan glukoamilase. Hidrolisis asam dilakukan menggunakan asam klorida 0,1 N. Hasil penelitian menunjukkan bahwa gula cair hasil hidrolisis enzimatis menghasilkan rendemen lebih tinggi dibandingkan hidrolisis asam. Rendemen gula cair paling tinggi dihasilkan pada proses hidrolisis enzimatis menggunakan alfa amilase 42µL dan glukoamilase 42µL sebesar 91,73% dengan nilai gula pereduksi sebesar 59,40%. Rendemen gula cair hidrolisis asam menggunakan HCl 1,0 N sebesar 78,55% dengan nilai gula pereduksi sebesar 31,48%.Kata kunci: Zea mays, pati, gula cair, hidrolisis HCl, hidrolisis enzim alfa-amilase, hidrolisis enzim glukoamilase

Sugar and Soluble Solids Changes in Refrigerated Sweet Corn (Zea mays L)

1992 ◽  
Vol 57 (2) ◽  
pp. 454-457 ◽  
Author(s):  
S. ZHU ◽  
J. R. MOUNT ◽  
J. L. COLLINS
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Sweet Corn ◽  
Soluble Solids

scholarly journals RELEASE OF SWEET CORN (ZEA MAYS L.) OPEN-POLLINATED CULTIVAR 'SURESWEET 2011

1969 ◽  
Vol 95 (1-2) ◽  
pp. 105-110
Author(s):  
James S. Beaver ◽  
Bryan R. Brunner ◽  
Arístides Armstrong
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Sweet Corn

RELEASE OF SWEET CORN (ZEA MAYS L.) OPEN-POLLINATED CULTIVAR 'SURESWEET 2011

scholarly journals Determination of water stress with spectral reflectance on sweet corn (Zea mays L.) using classification tree (CT) analysis

2013 ◽  
Vol 100 (1) ◽  
pp. 81-90 ◽  
Author(s):  
Levent Genc ◽  
Melis Inalpulat ◽  
Unal Kizil ◽  
Mustafa Mirik ◽  
Scot E. Smith ◽  
...  
Keyword(s):  
Zea Mays ◽  
Water Stress ◽  
Spectral Reflectance ◽  
Zea Mays L ◽  
Sweet Corn ◽  
Classification Tree ◽  
Ct Analysis

scholarly journals Acid and Enzymatic Hydrolyses of Rice Bran for Bioethanol Production

ALCHEMY ◽  
2018 ◽  
Vol 6 (1) ◽  
pp. 24
Author(s):  
Dewi Yuliani ◽  
Khoirul Achmad Julianto ◽  
Akyunul Jannah
Keyword(s):  
Enzymatic Hydrolysis ◽  
Hydrochloric Acid ◽  
Acid Hydrolysis ◽  
Sulphuric Acid ◽  
Rice Bran ◽  
Dilute Hydrochloric Acid ◽  
Cellulolytic Enzyme ◽  
Bioethanol Production ◽  
By Products ◽  
Sugar Source

<p class="BodyAbstract">Rice bran is one among many agricultural by-products containing ~50-60 wt.% of carbohydrate. The carbohydrate is a prominent sugar source for bioethanol production. The objective of this research was to study bioethanol production from rice bran by acid and enzymatic treatment. The variations of acid used were dilute hydrochloric acid and sulphuric acid, while variations of enzyme used were amylolytic and cellulolytic enzyme. Ethanol production of acid-hydrolyzed rice bran was 24.95±1.61% (v/v) by hydrochloric acid and 29.57±2.04% (v/v) by sulphuric acid. Ethanol produced by enzymatic hydrolysis was quite low i.e. 6.7±0.04%, and 8.86±0.29% (v/v) for amylolytic and cellulolytic hydrolysate, respectively.</p><p class="BodyAbstract"> </p><p>Keywords: Bioethanol, rice bran, acid hydrolysis, enzymatic hydrolysis</p>

scholarly journals Effect of salt stress on some sweet corn (Zea mays L. var. saccharata) genotypes

2015 ◽  
Vol 67 (3) ◽  
pp. 993-1000 ◽  
Author(s):  
Lydia Shtereva ◽  
Roumiana Vassilevska-Ivanova ◽  
Tanya Karceva
Keyword(s):  
Zea Mays ◽  
Salt Stress ◽  
Zea Mays L ◽  
Sweet Corn ◽  
Growth Parameters ◽  
Dry Weight ◽  
Germination Percentage ◽  
F1 Hybrid ◽  
Salt Stress Condition ◽  
Salinity Levels

An experiment was carried out hydroponically under laboratory conditions to investigate the effect of salt stress on several physiological and biochemical parameters of three sweet corn (Zea mays L. var. saccharata) genotypes: lines 6-13, C-6 (pollen source) and their heterotic F1 hybrid ?Zaharina?. The degree of salinity tolerance among these genotypes was evaluated at three different sodium chloride (NaCl) concentrations: 0 mM, 100 mM, 125 mM and 150 mM. Seed germination, plant growth and biochemical stress determining parameters such as malondialdehyde (MDA), proline content and hydrogen peroxide (H2O2) levels were compared between seedlings of lines and hybrid. The obtained results indicated that both lines and hybrid have similar responses at different salinity levels for all examined traits. All the seedlings? growth parameters, such as germination percentage, root length, shoot length, root and shoot fresh and dry weight, decreased with increasing salinity level. MDA, proline and H2O2 increased at different saline conditions in comparison to the control. Based on the results, of the three genotypes examined, the hybrid Zaharina, followed by line C-6, was more salt-sensitive than line 6-13 in salt stress condition.

scholarly journals A Comprehensive Review on Corn Starch-Based Nanomaterials: Properties, Simulations, and Applications

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2161
Author(s):  
Chella Perumal Palanisamy ◽  
Bo Cui ◽  
Hongxia Zhang ◽  
Selvaraj Jayaraman ◽  
Gothandam Kodiveri Muthukaliannan
Keyword(s):  
Zea Mays ◽  
Food Industry ◽  
Zea Mays L ◽  
Corn Starch ◽  
Food Crops ◽  
Natural Polymer ◽  
Comprehensive Review ◽  
Commercial Scale ◽  
Wide Range ◽  
Alternative Materials

Corn (Zea mays L.) is one of the major food crops, and it is considered to be a very distinctive plant, since it is able to produce a large amount of the natural polymer of starch through its capacity to utilize large amounts of sunlight. Corn starch is used in a wide range of products and applications. In recent years, the use of nanotechnology for applications in the food industry has become more apparent; it has been used for protecting against biological and chemical deterioration, increasing bioavailability, and enhancing physical properties, among other functions. However, the high cost of nanotechnology can make it difficult for its application on a commercial scale. As a biodegradable natural polymer, corn starch is a great alternative for the production of nanomaterials. Therefore, the search for alternative materials to be used in nanotechnology has been studied. This review has discussed in detail the properties, simulations, and wide range of applications of corn starch-based nanomaterials.

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