THE EFFECT OF COOKED POTATO IN CONJUNCTION WITH FERMENTABLE CARBOHYDRATE IN BREADMAKING

1932 ◽  
Vol 6 (5) ◽  
pp. 548-559
Author(s):  
R. H. Harris
Keyword(s):  
Protein Content ◽  
Sweet Potato ◽  
Significant Relationship ◽  
Simple Formula ◽  
Potassium Bromate ◽  
Loaf Volume ◽  
Fermentable Sugar ◽  
White Potato ◽  
Different Types ◽  
Diastatic Activity

A series of 11 flours of different types and baking strengths were baked by a variety of methods in order to determine the effect of adding fermentable sugar to the dough in conjunction with cooked white and sweet potato. Preliminary bakings using a simple formula of flour, water, yeast, and salt, with and without sucrose indicated the value of sucrose in flours of low diastatic power.The addition of cooked white potato in the absence of sucrose gave still poorer results with these low diastatic flours, but improved the better flours. The addition of sucrose increased the response of all flours, the maximum stimulation being obtained when both malt and sucrose were added. Evidently, cooked white potato is not a satisfactory substitute for fermentable sugars.It was found that cooked sweet potato not only supported yeast activity, but also stimulated it. However, it also imparted a deleterious dark tint to the loaf, thus lowering the color score.The addition of potassium bromate without sucrose resulted in a greater loaf volume than that obtained by the use of the simple formula with sucrose, except in the case of two flours, particularly low in diastatic activity. The inclusion of diastatic malt increased the loaf volumes of these two flours.No significant relationship was found between protein content and loaf volume, in the absence of added fermentable carbohydrate. The addition of sucrose and malt to bakings with potato extract resulted in correlations equal to those obtained with other flour improvers.

THE EFFECT OF DIASTATIC MALT UPON THE LOAF VOLUMES OF COMMERCIAL FLOURS

1932 ◽  
Vol 7 (6) ◽  
pp. 571-577
Author(s):  
R. H. Harris
Keyword(s):  
Protein Content ◽  
Simple Formula ◽  
Potassium Bromate ◽  
Loaf Volume ◽  
Significant Relation ◽  
Diastatic Power

A series of ten commercial flours of different protein contents and baking strengths was baked by a variety of methods to determine the effect of adding to the dough progressively increasing quantities of diastatic malt. The two lower malt concentrations, 2 and 4% respectively, increased the resulting loaf volumes in every case, but the highest percentage of malt, 6%, increased the loaf volume over the values obtained with 2 and 4% of malt only when the highest protein flours were used. Flours which yielded unsatisfactory loaves when baked with the simple formula gave much better results when malt was added.The inclusion of 0.002% of potassium bromate increased the loaf volumes except in the cases of two flours evidently of low diastatic power, where little improvement was shown on the results with the simple formula. The further addition of 2% of malt reacted very favorably with the higher protein members of the series, but had no effect upon these two flours.The addition of 2 and 4% of sucrose to the simple formula did not prove as beneficial as the addition of like quantities of diastatic malt.No significant relation was found between protein content and loaf volume in the absence of malt and bromate.

THE EFFECT OF BLEACHING ON STRENGTH AND COLOR OF SASKATCHEWAN HARD RED SPRING WHEAT FLOUR

1931 ◽  
Vol 4 (4) ◽  
pp. 399-420
Author(s):  
R. K. Larmour ◽  
F. D. Machon
Keyword(s):  
Protein Content ◽  
Rapid Method ◽  
Wheat Flour ◽  
Spring Wheat ◽  
Simple Formula ◽  
Small Samples ◽  
Loaf Volume ◽  
Bleaching Effect ◽  
Hard Red Spring Wheat

A rapid method for gas bleaching small samples has been described. A series of eight flours of varying protein content was prepared and divided into six subseries. One of these was used as a check; three were bleached with 0.5, 1.0, and 1.5 oz. Betachlor per barrel respectively and the remaining two were treated with 0.36 and 0.72 oz. Novadel per barrel respectively. The forty-eight samples thus obtained were baked one day after treatment and again after storing for one month.Novadel gives a good bleach but has little if any maturing effect. Betachlor is somewhat poorer than Novadel in bleaching effect but it matures the flour. The maturing effect on weak flours is slight but with high protein flours it increases with increasing dosages. This reaction seems to be dependent to some extent on the quantity of protein present.Unbleached flour baked with addition of potassium bromate gives practically the same result as chlorine-bleached flour baked by the simple formula. Aging causes further improvement in quality of chlorine-bleached flours but not so much as in unbleached or Novadel-bleached flours. The color of the bleached samples improved with aging at almost the same rate as the unbleached samples. The blending quality of flours does not appear to improve as a result of bleaching. Both bleached and unbleached samples in this experiment when baked by the bromate formula in a blend with soft flour, gave practically the same results with respect to loaf volume, texture, and appearance, and only a slight inferiority of the unbleached in color score.

THE EFFECT OF SUCROSE, COOKED POTATO, POTASSIUM BROMATE AND MALT UPON BAKING STRENGTH AT VARIOUS YEAST CONCENTRATIONS

1932 ◽  
Vol 7 (1) ◽  
pp. 51-63 ◽  
Author(s):  
R. H. Harris
Keyword(s):  
Sweet Potato ◽  
Potassium Bromate ◽  
White Potato ◽  
Water Salt ◽  
Potato Extract ◽  
Yeast Concentration

Three commercial and one experimental straight flour milled from 1931 Saskatchewan Marquis wheat were baked by a variety of methods, using various percentages of yeast.Two basic formulas were used; No. 1 containing flour, water, salt and yeast, No. 2 containing the same ingredients plus sucrose. To these were added 40 cc. of cooked white potato extract and diastatic malt.Using No. 2, no yeast starvation was apparent, but with No. 1 three flours showed this effect with higher yeast concentrations. The addition of potato extract resulted in pronounced yeast starvation with No. 1, and some starvation with No. 2. The further addition of malt produced optimum results with a yeast concentration of 3%.A further series of bakings with another commercial flour (E) showed the improving effect of sucrose and malt in the presence of 20% of cooked white potato. Cooked sweet potato appeared to be able to support fermentation in the absence of added sucrose. Potassium bromate produced larger loaves with sugar and malt with high yeast concentrations.As far as the flours used were concerned, using the basic formulas, there appeared to be no yeast starvation when 2.5% of sucrose was added (No. 2). When yeast stimulants were present, added sucrose and malt appeared to be necessary to prevent yeast starvation with a yeast concentration of 3%.

Composition of White Potato Starch (Ipomea batatas L.) with Avocado Seed Starch (Persea americana Mill) and Glyserol Concentration in Edible Film

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Musdar Musdar ◽  
Lukmanul Hakim ◽  
Juliani Juliani ◽  
Jailani Jailani
Keyword(s):  
Sweet Potato ◽  
Potato Starch ◽  
Persea Americana ◽  
Edible Film ◽  
Glycerol Concentration ◽  
White Potato ◽  
Ipomea Batatas ◽  
Sweet Potato Starch ◽  
Local Plants ◽  
Avocado Seed

White sweet potato starch (Ipomea batatas L.) and avocado seed starch (Parsea americana Mill) derived from local plants have the potential to be developed as agricultural products. Starch is a hydrocolloid compound as a potential local resource to be utilized. Glycerol function as an anti-freezing which is hygroscopic. This study aims to determine the ratio of white sweet potato starch with avocado seed starch and the concentration of glycerol for making edible film. This study was an experiment using a completely randimized factorial design with 2 (two) main factor consisting of a comparison of white sweet potato starch and avocado seed with 3 levels: P1 = 35%:65%., P2=50%:50%., P3=65%:35% and glycerol concentration with 3 levels: G1=1%., G2=2%., G3=3%. The best result reasearch were content of 23.03% (tratment P1G1), solubility of 55.57% (treatment P3G2)., swelling test of 9.83% (treatment P2g3)., elongation of 8.18% (treatment P3G2)

EFFECTS OF HIGH RATES OF NITROGEN ON NEEPAWA WHEAT GROWN UNDER IRRIGATION. III. PROTEIN QUALITY FOR BREADMAKING AS REFLECTED BY VARIOUS TESTS

1978 ◽  
Vol 58 (4) ◽  
pp. 923-927 ◽  
Author(s):  
W. BUSHUK ◽  
F. J. RODRIGUEZ-BORES ◽  
S. DUBETZ
Keyword(s):  
Protein Content ◽  
Protein Quality ◽  
Protein Solubility ◽  
Triticum Aestivum L ◽  
Rate Of Change ◽  
Composition Analysis ◽  
Loaf Volume ◽  
Gradual Change ◽  
Small Contribution ◽  
Breadmaking Quality

Eleven samples of hard red spring wheat Triticum aestivum L. em Thell cv. Neepawa, selected from a fertilizer–irrigation study and ranging in protein content from 9.3 to 16.4%, were subjected to various breadmaking quality tests, protein solubility fractionation, amino acid composition analysis and gliadin electrophoresis analysis. Loaf volumes showed a decrease in breadmaking quality with increasing protein for samples at the top of the protein content range. Conversely, the Pelshenke and Zeleny Sedimentation values showed a reverse trend in the same region of protein content. Most of the decreasing rate of change in the loaf volume with protein content at the top of the protein range can be explained by the gradual change in solubility of the glutenin. The gradual decrease in the amount of damaged starch can make a small contribution to the observed loss of quality. Minor quantitative differences (slightly stronger stain intensity for a few bands) were observed in the gliadin electrophoregrams of samples of different protein content. There is no obvious explanation for the increasing rate of change in Pelshenke and Zeleny Sedimentation values with protein content at the top of the protein range.

scholarly journals Pyramiding of Genes for Grain Protein Content, Grain Quality and Rust Resistance in Eleven Indian Bread Wheat Cultivars: A Multi-Institutional Effort

2021 ◽  
Author(s):  
Pushpendra K. Gupta ◽  
Harindra S. Balyan ◽  
Parveen Chhuneja ◽  
Jai P. Jaiswal ◽  
Shubhada Tamhankar ◽  
...  
Keyword(s):  
Protein Content ◽  
Rust Resistance ◽  
Grain Quality ◽  
Grain Protein Content ◽  
Grain Protein ◽  
Loaf Volume ◽  
Wheat Cultivars ◽  
Glutenin Subunits ◽  
Hmw Glutenin Subunits ◽  
Hmw Glutenin

Abstract Improvement of grain protein content (GPC), loaf volume and resistance to rusts was achieved in 11 Indian wheat cultivars that are widely grown in four different agro-climatic zones of India. This involved use of marker-assisted backcrossing (MABC) for introgression and pyramiding of the following genes: (i) the high GPC gene Gpc-B1; (ii) HMW glutenin subunits 5 + 10 at Glu-D1 loci, and (iii) rust resistance genes, Yr36, Yr15, Lr24 and Sr24. GPC was improved by 0.8–3.3%, although high GPC was generally associated with yield penalty. Further selection among high GPC lines, allowed development of progenies with higher GPC associated with improvement in 1000-grain weight and grain yield in the following four cultivars: NI5439, UP2338, UP2382 and HUW468. The high GPC progenies (derived from NI5439) were also improved for grain quality using HMW glutenin subunits 5 + 10 at Glu-D1 loci. Similarly, progenies combining high GPC and rust resistance were developed in the backgrounds of following five cultivars: Lok1, HD2967, PBW550, PBW621 and DBW1. The improved pre-bred lines developed during the present study should prove useful for development of cultivars with improved nutritional quality associated with rust resistance in future wheat breeding programmes.

scholarly journals KARAKTERISTIK CAKE YANG DIBUAT DENGAN SUBTITUSI CAMPURAN TEPUNG PISANG BATU (Musa balbisiana colla) DAN UBI JALAR KUNING (Ipomea batatus L.)

2019 ◽  
Vol 2 (2) ◽  
pp. 56
Author(s):  
Nugroho Setya Budi ◽  
Yhulia Praptiningsih ◽  
Maryanto Maryanto
Keyword(s):  
Sweet Potato ◽  
Wheat Flour ◽  
Starch Content ◽  
Chemical Properties ◽  
Loaf Volume ◽  
Potato Flour ◽  
Organoleptic Characteristics ◽  
High Preference ◽  
Banana Flour ◽  
Sweet Potato Flour

ABSTRACT Cake is made from wheat flour, sugar, and eggs. The supply of wheat flour depends on wheat import. The wheat imports predicted to continue to increase, so it is necessary to find an alternative to reduce the use of wheat flour as a primary ingredient of cake sourced from local raw materials which low utilized. Balbisiana banana was a low class of banana which had a low optimal utilization because it was disliked by the people. Balbisiana banana had a dark lightness so it was needed to add the yellow sweet potato flour to increase the brightness of the cake. Balbisiana banana and yellow sweet potato flour could be used as wheat to substitution because had high starch content, good nutritional value and low IG value. The purpose of this research was to know the influence of the proportion of balbisiana banana and yellow sweet potato flour on the physical and organoleptic characteristics of cake, to know the proportion of balbisiana banana and yellow sweet potato flour on cake with good properties and high preference, and chemical properties of cake high preference. The results showed that the proportion of balbisiana banana and yellow sweet potato flour significantly affected on color (lightness), loaf volume, and staleness, and there were difference on preference of color, flavor and overall but not difference taste and staleness (p <0.05). Cakes with good properties and high preference were P5 (10% balbisiana banana flour: 40% yellow sweet potato flour) and P6 (50% yellow sweet potato flour). This cake had moisture content 26,21% - 27,58%, ash content 1,19% - 1,26%, fat content 20,42% - 21,23%, protein content 11,45% - 11,74%, and carbohydrate content 38,26% - 40,65%. Keywords: balbisiana banana flour, yellow sweet potato, cake ABSTRAK Cake adalah kue berbahan dasar terigu, gula, dan telur. Ketersediaan terigu tergantung pada hasil impor gandum. Impor terigu diprediksi akan terus mengalami peningkatan, sehingga perlu dicari alternatif untuk mengurangi penggunaan terigu sebagai bahan dasar cake yang bersumber dari bahan baku lokal yang belum termanfaatkan secara optimal. Pisang batu termasuk pisang kelas rendah yang pemanfaatannya kurang optimal karena kurang disukai. Tepung pisang batu memiliki warna cenderung gelap sehingga perlu penambahan tepung ubi jalar kuning untuk meningkatkan kecerahan warna cake. Tepung pisang batu dan ubi jalar kuning dapat digunakan sebagai bahan substitusi terigu karena adanya kandungan pati yang tinggi, memiliki nilai nutrisi yang baik dan juga memiliki nilai IG yang rendah. Tujuan dari penelitian ini adalah mengetahui pengaruh proporsi tepung pisang batu dan tepung ubi jalar kuning terhadap karakteristik fisik dan organoleptik cake, mengetahui proporsi dengan tepung pisang batu dan tepung ubi jalar kuning pada cake dengan sifat-sifat yang masih baik dan disukai, serta kandungan kimia cake perlakuan yang masih baik. Hasil penelitian menunjukkan bahwa proporsi tepung pisang batu dan tepung ubi jalar kuning berpengaruh nyata terhadap warna (lightness), daya kembang, dan staleness, serta terdapat perbedaan tingkat penerimaan panelis terhadap parameter warna, aroma dan keseluruhan namun tidak terdapat perbedaan tingkat penerimaan panelis terhadap parameter rasa dan tekstur (p<0,05). Cake dengan sifat-sifat yang masih baik dan disukai terdapat pada proporsi P5 (10% tepung pisang batu: 40% tepung ubi jalar kuning) dan P6 (50% tepung ubi jalar kuning). Karakteristik kimia cake yang masih baik mengandung kadar air 26,21% - 27,58%, kadar abu 1,19% - 1,26%, kadar lemak 20,42% - 21,23%, kadar protein 11,45% - 11,74%, dan kadar karbohidrat 38,26% - 40,65%. Kata kunci: pisang batu; ubi jalar kuning; cake

scholarly journals Some correlations between parameters of winter wheat technological quality

2006 ◽  
Vol 54 (1) ◽  
pp. 23-30
Author(s):  
Jindřiška Kučerová
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Protein Content ◽  
Negative Correlation ◽  
Weather Conditions ◽  
Loaf Volume ◽  
Bread Making ◽  
Wheat Varieties ◽  
Baking Quality ◽  
Technological Quality

The results of three-year trials (1999 to 2001) conducted with six winter wheat varieties in which was studied the grain yield and parameters of technological quality. Varieties of wheat come from four different localities of the Czech Republic. The most favourable weather conditions, a lot of precipitation and high temperature in the course of ripening from three years were proved in the year 2000. The best grain yield were in 2001 (average of sites 8.84 t/ha) and variety Semper, worst quality, had the highest grain yield of 9.17 t/ha, the least grain yield had Sulamit, best quality (7.94 t/ha). The laboratory analysis revealed negative correlation between grain yield and baking quality. The number of statistically highly significant correlations among bread-making quality parameters too.The negative correlation was of grain yield and grain volume mass (P < 0.05), Zeleny test and protein content taken as a whole for three years (P < 0.01). The correlation of loaf volume, which is the traits of baking quality and Zeleny test (r = 0.6016**), protein content (r = 0.5932**), dough stability (r = 0.2898**) and flour water absorption (r = 0.3632**) was positive (P < 0.01).

Analysis of the Protein Content of Five Different Types of Kidney Stones

1994 ◽  
pp. 363-364
Author(s):  
B. Dussol ◽  
M. Daudon ◽  
P. Dupuy ◽  
R. Michel ◽  
Y. Berland ◽  
...  
Keyword(s):  
Protein Content ◽  
Kidney Stones ◽  
Different Types

Peculiarities of extraction of β-lactoglobuline in protein mineral concentrates at electroactivation of whey

2020 ◽  
Vol 2 (1) ◽  
pp. 52-68
Author(s):  
Mircea BOLOGA ◽  
Elvira VRABIE ◽  
Irina PALADII ◽  
Olga ILIASENCO ◽  
Tatiana STEPURINA ◽  
...  
Keyword(s):  
Protein Content ◽  
Whey Proteins ◽  
Sodium Dodecyl ◽  
Total Protein Content ◽  
Treatment Regimens ◽  
Sds Page ◽  
Different Types ◽  
Lower Protein ◽  
Β Lactoglobulin ◽  
Excellent Source

Introduction. Whey is a by-product and an excellent source of proteins that is rather aggressive due to a large amount of organic substances it contains. The electro-activation of whey applied in the experiments is a wasteless method that allows the va-lorification of all whey components. β-lactoglobulin (β-Lg) makes up 50% of the whey proteins and 12% of the total protein content in milk. Material and methods. The recovery of β-Lg in protein-mineral concentrates (PMC) by electro-activation processing of different types of whey with different initial protein content was investigated in seven configurations. The recovery of protein fractions in the PMCs were analyzed via electrophoresis with sodium dodecyl sulfate (SDS-PAGE) and 15% non-denaturing polyacrylamide gel (PAAG).      Results. Whey electro-fractionation and the obtaining of PMCs with predetermined protein content, namely of β-Lg, were studied on three whey types, processed at different treatment regimens and in seven configurations. The proper management of electroactivation by varying the treatment regimens will allow the electro-fractionation of different types of dairy by-products. Conclusions. The maximum amount of β-Lg recovered in PMCs on electroactivation is  66-71% depending on the processed whey and on the treatment regimens. Obviously, the extraction of β-Lg from initially lower protein content shows a higher recovery degree of β-Lg. The registered temperatures allows formation of PMCs without thermal denaturation.

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