scholarly journals Karakteristik produk dan efektivitas enkapsulasi bakteri pendegradasi asam sianida (HCN)

2018 ◽  
Vol 16 (2) ◽  
pp. 20
Author(s):  
A Mislah ◽  
S Suharti ◽  
I Wijayanti
Keyword(s):  
Manihot Esculenta ◽  
Room Temperature ◽  
Control Treatment ◽  
Rumen Bacteria ◽  
Product Characteristics ◽  
Bacterial Product ◽  
Cassava Leaves ◽  
Degrading Bacteria ◽  
Cyanide Degradation ◽  
Bitter Cassava

ABSTRAK<br /><br />Daun singkong pahit (Manihot esculenta)memiliki kandungan antinutrisi berupa asam sianida (HCN) yang tinggi, namun HCN dapat di degradasi dengan bakteri rumen. Penelitian ini bertujuan untuk mengamati karakteristik produk dan efektivitas enkapsulasi bakteri pendegradasi sianida dengan masa simpan (0, 1, 2, 3, 4, 5, 6, 7, 14, 21, 28 hari) pada suhu ruang. Peubah yang diamati adalah karakteristik produk dan viabilitas bakteri pendegradasi sianida terenkapsulasi. Data yang diperoleh dianalisa dengan sidik ragam (ANOVA) menggunakan program SPSS 16.0. Hasil penelitian menunjukkan bahwa lama penyimpanan berpengaruh terhadap perubahan warna dan bentuk dari produk hasil enkapsulasi. Penyimpanan produk enkapsulasi bakteri pendegradasi sianida selama 3 hari tidak mempengaruhiviabilitas bakteri dibandingkan kontrol. Namun demikian semakin lama penyimpanan produk enkapsulasi bakteri sampai hari ke 28 nyata menurunkan (P&lt;0.05) viabilitas bakteri.Hasil penelitian dapat disimpulkan bahwa dengan teknik enkapsulasi dapat mempertahankan viabilitas bakteri pendegradasi sianida.<br /><br />Kata kunci: bakteri pendegradasi sianida, karakteristik produk, penyimpanan,viabilitas<br /><br />ABSTRACT<br /><br />Bitter cassava leaves have high antinutrients in the form of cyanide acid (HCN), but HCN can be degraded with rumen bacteria. This research aimed to observe the product characteristics and the effectivity of cyanide degradation bacteria capsulation with different length of storages (0, 1, 2, 3, 4, 5, 6, 7, 14, 21, 28 days)in the room temperature. The observed variables were product characteristics and viability of cyanide degrading bacteriacapsulation. The data obtained were analyzed by Analysis of variance (ANOVA) using SPSS 16.0 program. The results showed that storages duration affected the color and shape of cyanide degradation bacteria capsulation products. The storage of capsulated HCN degrading bacteria up to 3 days did not affect the viability of bacteria compared to the control treatment. However, the longer storage of capsulated bacteria up to 28 days, significant decreased (P&lt;0.05) the viability of the bacteria. It is concluded that capsulation of cyanide degrading bacteria could maintain the viability of bacteria.<br /><br />Keywords: cyanide degradation bacterial, product characteristics, storage, viability

scholarly journals Crop Response to Soil Acidity Factors in Ultisols and Oxisols in Puerto Rico X1. Cassava.

1969 ◽  
Vol 69 ◽  
pp. 145-151
Author(s):  
Edmundo Rivera ◽  
Fernando Abruña ◽  
José Rodríguez
Keyword(s):  
Puerto Rico ◽  
Manihot Esculenta ◽  
Cation Exchange Capacity ◽  
Soil Acidity ◽  
Exchange Capacity ◽  
Manihot Esculenta Crantz ◽  
Cassava Leaves ◽  
Exchangeable Al ◽  
Decreasing Ph ◽  
The Tropics

Cassava (Manihot esculenta Crantz), one of the major sources of carbohydrates throughout the tropics, was found to be very tolerant to high soil acidity in two Ultisols and one Oxisol. About 85% of maximum yields were obtained when Al saturation of the effective cation exchange capacity of the soil was around 60%, but highest yields were attained at about pH 5.3 with no exchangeable Al. Soil acidity factors did not affect the chemical composition of the cassava leaves, except for Mn, which increased with decreasing pH of the Oxisol. Tolerance of cassava to soil acidity was also confirmed by the fact that yields of 12 commercial varieties were not affected by Al saturation levels varying from 0 to 60% in an Ultisol.

scholarly journals Influence of Seed Hardening Techniques on Vigor, Growth and Yield of Wheat under Drought Conditions

2016 ◽  
Vol 4 (3) ◽  
pp. 121
Author(s):  
Amir Zaman Khan
Keyword(s):  
Grain Yield ◽  
Room Temperature ◽  
Dry Weight ◽  
Crop Productivity ◽  
Growth And Yield ◽  
Control Treatment ◽  
Sowing Seed ◽  
And Control ◽  
Peg 8000 ◽  
1000 Grain Weight

Exploring ways to improve stand establishment and crop productivity under abiotic stresses like drought is important. Two years experiments were conducted at University of Agriculture, Peshawar-Pakistan to examine the efficacy of six pre-sowing seed hardening agents. Seeds of wheat cultivar Uqab-2000 were hardened in six different chemicals of various concentration viz; PEG-8000 (10%), CaCl2 (4%), KNO3, (3%), Mannital (4%), NaCl (5%), Na2SO4 (2%) along with water soaking and dry seeds as control for 24 hours and drying back to original moisture content at room temperature. The soaking and drying of seeds was repeated twice for 12 hours. The results showed that pre-sowing hardening of seed with PEG-8000, CaCl2 and KNO3 gave higher germination, decreased days to 50% germination, increased shoot length, root length, seedling fresh and dry weight in laboratory experiment as compared with other hardening and control treatment. Under field conditions, maximum plant height (93.53cm), spikelet’s spike-1 (17.16), grains spike-1 (50.82), 1000 grain weight (39.97 g), grain yield (3482 kg ha-1) and maximum harvest index (32.5%) were observed in PEG-8000 hardened seed than control treatment (2872 kg ha-1). Seed hardened in PEG-8000, CaCl2 and KNO3 gave 30% increase in grain yield as compared to Mannital, NaCl and Na2SO4 which gave 15% increase in grain yield over control treatment.

scholarly journals Effect of soaking and germination on approximate composition and certain characterize of isolate protein (solubility and degree of hydrolysis) Of mung bean Vigna radiate

2014 ◽  
Vol 8 (4) ◽  
pp. 31-34
Author(s):  
Abdul kadir Hadi Alwan ◽  
Sahr Sebeh ◽  
Mustafa Farhan Guma
Keyword(s):  
Mung Bean ◽  
Room Temperature ◽  
Protein Solubility ◽  
Control Sample ◽  
Control Treatment ◽  
Degree Of Hydrolysis ◽  
Vigna Radiate ◽  
Maximum Value ◽  
Approximate Composition ◽  
Hydrolysis Of

Four groups of local mung bean Vigna radiate were soaked for 24h. Three of these were germinated for 1, 2 and 3 days at room temperature 23˚Cusing wet cloths between technique while the fourth was depending as a soaking sample in addition to control treatment without soaking. Approximate chemical composition (crud protein, oil, ash, moisture, fibers and carbohydrates) and mung protein isolates (MPI) with its solubility SP and degree of hydrolysis DH, were determined for four dehulling groups besides control sample. Dehulling mung bean DMB flour contained 23.53, 1.83, 3.11, 7.5, 17.14 and 46.89% crud protein, oil, ash, moisture, fibers and carbohydrates, respectively. While the values of MPI, SP, and DH were 12.85, 1.5 and 1.4 % respectively .During germination significantly increasing in (CP) (MPI) and (DH) and the maximum values were 25.29, 15.34 and 2.11%respectively after two days, while maximum value was 9.53% for protein solubility after 3 days of germination. While oil content diminished a little and slight inconstant changes were shown in fibers and rest carbohydrates.

scholarly journals A REVIEW: EFFECT OF TEMPERATURE TO ANTIOXIDANT ACTIVITY AND HCN LEVEL IN CASSAVA (MANIHOT ESCULENTA CRANTZ) LEAVES

2021 ◽  
Author(s):  
Zainal Abidin ◽  
Asriani Suhaenah ◽  
Maya Sari
Keyword(s):  
Antioxidant Activity ◽  
Peer Review ◽  
Manihot Esculenta ◽  
Heating Temperature ◽  
Persea Americana ◽  
Effect Of Temperature ◽  
Antioxidant Compounds ◽  
Manihot Esculenta Crantz ◽  
Cassava Leaves ◽  
Dry Heating

Cassava Leaves (Manihot esculenta Crantz) is one of the food resources that many people consume as vegetables in some regions. People believe that it has natural antioxidant compounds such as phenolic and flavonoids.  Also,  it  contains  HCN  elements  known  as  toxic  compounds. However, HCN levels can be reduced by dry heating and boiling. Phenolic and flavonoids are not resistant to heating and are easily oxidized. This article aim to assess the effect of temperature to antioxidant activity and the decrease of HCN level of cassava leaves. The pretreatment  heating  by oven (dry heating) and cooking (boiling heating) greatly affects to the antioxidant activity and  the reduction of cyanide acid (HCN) level in cassava leaves. This article may be useful for any one or any researcher to determine pretreatment heating temperature and heating method  to process prepare cassava leaves.                        Peer Review History: Received 6 November  2020; Revised 25 Decembe; Accepted 4 January, Available online 15 January 2021 UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency. Received file:                           Comments of reviewer(s):         Average Peer review marks at initial stage: 5.0/10 Average Peer review marks at publication stage: 7.5/10 Reviewer(s) detail: Ahmad Najib, Universitas Muslim Indonesia, Makassar, Indonesia, [email protected] Dr. Marwa A. A. Fayed, University of Sadat City, Egypt, [email protected] Prof. Dr. Ali Gamal Ahmed Al-kaf, Sana'a university, Yemen, [email protected] Similar Articles: PHYTOCHEMICAL INVESTIGATION AND EVALUATION OF ANTIOXIDANT AND THROMBOLYTIC PROPERTIES OF LEAVE EXTRACTS OF GARDENIA CORONARIA BUCH-HAM PHYTOCHEMICAL SCREENING AND IN VITRO ANTIOXIDANT AND ANTI-DIABETIC POTENTIALS OF PERSEA AMERICANA MILL. (LAURACEAE) FRUIT EXTRACT

scholarly journals Obtaining hybrids of cultivars and wild subspecies of cassava

2018 ◽  
Vol 53 (2) ◽  
pp. 182-188 ◽  
Author(s):  
Dreid de Cerqueira Silveira da Silva ◽  
Márcio Lacerda Lopes Martins ◽  
Ariana Silva Santos ◽  
Vanderlei da Silva Santos ◽  
Alfredo Augusto Cunha Alves ◽  
...  
Keyword(s):  
Manihot Esculenta ◽  
Room Temperature ◽  
Male Parent ◽  
Controlled Crosses ◽  
Viable Seeds ◽  
The Moment

Abstract: The objective of this work was to evaluate the crossability between cassava (Manihot esculenta subsp. esculenta) cultivars and the subspecies M. esculenta subsp. flabellifolia and M. esculenta subsp. peruviana. Plants from the BRS Jari, BRS Formosa, BRS Verdinha, and BGM 2050 (Equador 72) cultivars were crossed with the two subspecies. During flowering, at pre-anthesis, pistillate flowers were covered with a nylon bag and staminate flowers on the same inflorescence were emasculated. The staminate flowers were collected and placed in flasks previously labeled and sterilized with alcohol; some fresh flowers were stored at room temperature due to asynchronous flowering. The crosses were made between 10 a.m. and 2 p.m. After pollination, the flowers were covered again. Evaluations were made from the moment of pollination to the dehiscence of the fruit. Of the total flowers pollinated, 38% were fertilized, and 504 developed fruits and 816 produced seeds were observed. As a male parent, M. esculenta subsp. flabellifolia is more efficient in crosses with M. esculenta subsp. esculenta and may be recommend for controlled crosses. The crosses between the cassava cultivars and M. esculenta subsp. flabellifolia and M. esculenta subsp. peruviana produce viable seeds.

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