Effect of wheat pearling on flour phytase activity, phytic acid, iron, and zinc content

LWT ◽  
2008 ◽  
Vol 41 (3) ◽  
pp. 521-527 ◽  
Author(s):  
Zhenghui Liu ◽  
Haiyan Wang ◽  
Xiu-E Wang ◽  
Hongyan Xu ◽  
Derong Gao ◽  
...  
2021 ◽  
Vol 33 (1) ◽  
pp. 123-129
Author(s):  
Meena Verma ◽  
Roop Singh Bora ◽  
Imran Sheikh ◽  
Vinod Kumar ◽  
Punesh Sangwan ◽  
...  

Introduction: Phytic acid chelate minerals, including Fe and Zn and render them inaccessible once ingested by human beings. The evaluation of differences in the dialyzability of macronutrients including Fe and Zn in various wheat derivatives is therefore important for the enhancement of nutritional quality of grains. Objectives: The objective of current study was to improve the micronutrient content in wheat grain. Methods: During germination (12, 24, 48, 72, 96 h), effects of gibberellins and ascorbic acid on phytic acid content as well as dialyzability of iron and zinc of wheat derivatives were determined. Results: The phytic acid content in wheat flour was determined and it was found 7.61 to 7.48 mg/g. After the treatment with gibberellins, it was significantly reduced from 8.68 to 21.6 % and 9.65 to 20.9 % with ascorbic acid. In wheat flour dialyzabilty of Fe was 4.53 to 8.97 mg/kg. After germination, Fe content was increased from 9.77 to 32.0 % with gibberellin, and 13.9 to 31.0 % with ascorbic acid. Moreover, with gibberellins, Zn content was increased from 8.68 to 21.6 % and 9.65 to 20.9 % with ascorbic acid, respectively. Conclusion: These results suggested that gibberellins as well as ascorbic acid can be exploited to improve the dialyzability of iron and zinc content due to reduced antinutrient i. e phytic acid and make the minerals available for the absorption in monogastric animals including human beings.


2017 ◽  
Vol 64 (3) ◽  
pp. 331-346 ◽  
Author(s):  
Sayedeh Saba Bilgrami ◽  
Saadollah Houshmand ◽  
Mahdi Kadivar ◽  
Baratali Fakheri ◽  
Peiman Zandi ◽  
...  

2020 ◽  
Vol 100 (11) ◽  
pp. 4150-4164 ◽  
Author(s):  
Shilpa M Naik ◽  
Anitha K Raman ◽  
Minnuru Nagamallika ◽  
Challa Venkateshwarlu ◽  
Suresh Prasad Singh ◽  
...  
Keyword(s):  

2010 ◽  
Vol 53 (4) ◽  
pp. 975-980 ◽  
Author(s):  
Juliana da Silva Agostini ◽  
Rosicler Balduíno Nogueira ◽  
Elza Iouko Ida

The objective of this work was to investigate the germination of hybrid sunflowers BRS191 and C11 as a means of lowering phytic acid (PA) content by enhancing the activity of endogenous phytase and acid phosphatase. The concentration of PA in hybrid sunflower achenes varied from 2.16 to 2.83g/100g of sample (p < 0.05). The phytase and acid phosphatase activities of sunflowers BRS191 and C11 were the highest on the 4th and 5th days of germination, respectively, with the release of the phosphorus. These results indicated that hybrid sunflower PA reduced and enhance phytase activity at distinct germination periods, which could open up the possibility of applying these enzymes in the control of PA content in cereals, thus improving their nutritional value.


2017 ◽  
Vol 9 (12) ◽  
pp. 241 ◽  
Author(s):  
Casinga Mubasi Clérisse ◽  
Neema Ciza Angélique ◽  
Kajibwami Cikuru Marie-Angélique ◽  
Nabahungu Nshwarasi Leon ◽  
Mambani Banda Pierre

This study investigated the influence of three soil moisture irrigation regimes on concentration of seed iron and zinc content of four biofortified bean varieties promoted for eradication of malnutrition in Sud-Kivu highlands. A field experiment was conducted in the Hogola marsh highlands during two cultural seasons B2013 and B2014. The experiment design was a RCBD with a split plot arrangement where the main plots were 110 m2 and split plots 20 m2. A strategic application of homogenisation of the experimental site’s soil fertility by chemical fertilizers of the type: CaCO3, KCl and DAP was conducted out. Four biofortified varieties (CODMLB001, RWR2245, HM21-7 and RWK10) constituted main factor, while water regimes respectively [bottom of the slope: R1 = 48% soil moisture, at the middle of the slope R2 = 37% soil moisture and at the top of the slope: R3 = 29% soil moisture according to the gradient of humidity] represented secondary factor and seasonality, tertiary factor. The study showed that the concentrations of iron and zinc were highly correlated with soil moisture regimes. The variety HM21-7 demonstrated better adaptability because it showed a low rate of reduction of iron and zinc concentration under the three soil moisture regimes and was therefore best suited to fight malnutrition in the Sud-Kivu province.


2019 ◽  
Vol 6 (2) ◽  
pp. 235-243
Author(s):  
Kazi Ishrat Anjum ◽  
Mohammad Anowar Hossain

The experiment was conducted to evaluate the nutritional and cooking properties of some rice varieties collected from the farmers of Noakhali region of Bangladesh. Noakhali district is situated in the coastal belt of the country and this area also termed as ‘char’ land. All of the selected varieties were grown in saline soil condition. For assessment of nutritional quality, protein, iron and zinc content were estimated. The protein, iron and zinc content ranged from 6.75 to 8.63%, 7.09 to 9.84ppm, 24.52 to 32.34ppm, respectively. The highest amount of protein, iron and zinc were found in Kajalshail variety. All of the rice varieties showed significant variation for all cooking properties studied in this work. The volume expansion ratio (VER) was varied from 1.89 to 2.20. The kernel elongation ratio (KER) was greater than 1.1 in all varieties except Carandol. On cooking Kajalshail variety exhibited highest VER and KER 2.20 and 1.19, respectively. Based on the gel consistency (GC) test, the average GC values ranged from 39.73 to 92.53mm and varieties were categorized as hard, medium and soft. On the basis of alkali spreading value (ASV) the varieties were classified into three groups namely- low, intermediate and high. ASV was found significantly and negatively correlated with gelatinization temperature (GT). The Kajalshail variety was found to have the better nutritional and cooking quality among all varieties. Res. Agric., Livest. Fish.6(2): 235-243, August 2019


Author(s):  
Maini Bhattacharjee ◽  
Kasturi Majumder ◽  
Sabyasachi Kundagrami ◽  
Tapash Dasgupta

Rice is one of the most important staple food crops for billions of people throughout the world. It is the cheapest source of dietary energy, protein and minerals for people but poor in micronutrients such as Fe and Zn to eliminate “hidden hunger”. In the present study, a population of 126recombinant inbred lines developed from a cross between Lemont X Satabdi (IET 4786) were used to identify high iron and zinc content coupled with yield and yield attributing traits. Analysis of Variance revealed that a considerable variation in iron and zinc existed among genotypes. The correlation study revealed that number of filled grain was positively associated with panicle length and yield per plant and number of panicles, but no significant positive correlation was observed between grain zinc content and iron content. Zinc and iron content of rice was estimated using Atomic Absorption Spectrophotometer and the samples were prepared by tri-acid digestion method. Among RIL lines, the line 57, 97,120, 48, 99, 124 contained more than 30 ppm Fe and the lines 24, 6, 9, 23, 29, 125 were found to possess more than 50 ppm Zn. The lines 9,6,48 and 57 were recorded to be high yielding with high zinc and Fe content in grain and in future these four lines look promising for multi location trial also. These high Fe and Zn content genotypes can be utilized in future breeding programme as a donor or good source for bio fortification of rice genotypes.


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