Refine search
Results 1-10 of 1,366
Influence of aqueous extracted wheat bran on the quality of wheat bread
1998
Shams-Ud-Din, M. | Saalfeld, U. | Freund, W.
Gegenstand der Untersuchung war der Einfluss eines wassrigen Extraktionsverfahrens auf die backtechnologischen Eigenschaften einer handelsublichen Weizenkleie. Die Weizenkleie wurde mit der 10-fachen Wassermenge bei 25 Grad C, 14 Grad C und 5 Grad C extrahiert, auf eine Restfeuchte von 1,68 - 2,58% getrocknet und in die drei Siebfraktionen grob ( 1000 pm), mittel (500-1000 pm) und fein ( 500 pm) getrennt. Die Ausbeute der bei 25 Grad C, 14 Grad C und 5 Grad C gewonnenen Extraktionskleie betrug 52,3%, 60,6% und 63,1 %. Neben dem Trocknungsverlust konnten die Extraktionsverluste auf einen geringeren Starke-, Eiweiss-, und Mineralstoffgehalt zuruckgefuhrt werden. Die wassrige Extraktion bewirkte einen hoheren Gesamtkohlenhydratgehalt, der auf einen hoheren Ballaststoffanteil in der Extraktionskleie zuruckgefuhrt werden kann. Im allgemeinen bewirkten hohere Kleiezusatze ein verringertes Volumen der Weizenkastenbrote. Verglichen mit der unbehandelten Kleie hatte die Extraktionskleie jedoch bis zu einer Dosierung von 5 % einen positiven Einfluss auf das Brotvolumen. Da mit dem Ziel einer Ballaststoffanreicherung im Brot eine vergleichsweise geringere Dosierung der Extraktionskleie moglich ist, ist der positive Einfluss der Kleieextraktion auf das Brotvolumen noch hoher zu bewerten.
Show more [+] Less [-]Effect of rice and wheat establishment techniques on wheat grain yield
1998
Giri, G.S. (Rice-wheat coordination, Bhairahawa, (Nepal))
An experiment was designed to develop an alternative technology to rice transplanting and wheat seeding in soil with excess moisture. Rice planting methods did not affect wheat yield whereas wheat crop establishment methods significantly affected wheat grain yields and yield components. Planting wheat with the Chinese seed drill resulted in the highest grain yield (2,937 kg/ha) and net benefit (Rs 20,194)/ha). The next most favorable practice was surface seeding of wheat. Surface seeding resulted in the most plump grain and proved to be an alternative for planting wheat on time in the mid- and lower wetlands, where there is excess soil moisture at wheat planting time. This practice could help bring non-traditional wheat areas (Presently sown to rice-fallow) into wheat cultivation (rice-wheat).
Show more [+] Less [-]Impact of wheat resistance on Russian wheat aphid and a parasitoid
1998
Farid, A. | Quisenberry, S.S. | Johnson, J.B. | Shafii, B.
Impact of wheat, Triticum aestivum L., resistance (resistant PI 137739 and PI 262660, and susceptible 'Stephens') on Diuraphis noxia (Mordvilko), the Russian wheat aphid, and the parasitoid Diaeretiella rapae (M'Intosh), was studied using varying densities of aphids (0, 20, or, 40 aphids per plant) and parasitoids (0, 1, or 2 pairs per plant). Resistant lines were less damaged by aphid feeding than Stephens with leaf area, weight, and height reductions observed on Stephens. Plant resistance did not have an adverse affect on percentage of parasitism. Plant quality, indicated by leaf area, weight, and height, was lower when initial aphid density was 40 aphids per plant compared with 20 aphids per plant. Overall, the rate of Russian wheat aphid population increase was lower at 40 aphids per plant compared with 20 aphids per plant. Addition of a 2nd pair of D. rapae increased the percentage of parasitism on plants infested at an initial rate of 20 aphids per plant. Percentage of parasitism was higher when plants were infested initially with 20 aphids per plant than 40 aphids per plant. Plant resistance did not have any adverse effect on emergence time, sex ratio, and adult longevity of D. rapae. Percentage of emergence of D. rapae was greater when emerging from aphids on resistant plants than on the susceptible wheat, Stephens, at 40 aphids per plant. Results indicated that D. rapae parasitism and PI 137739 and PI 262660 resistance were compatible tactics.
Show more [+] Less [-]Effect on wheat stubble on yields of peanut intercropped
1998
Ren Li (Kaifeng Agricultural and Forestry Inst., Henan (China))
Fundamental studies on the effect of post-harvest process on characteristics of wheat, 2: Temporary storage of semidried wheat
1998
Lu, D. (Hokkaido Univ., Sapporo (Japan). Faculty of Agriculture) | Kawamura, S. | Itoh, K.
Deterioration in the quality of semidried wheat grains stored under various conditions was investigated. Moisture contents (wb) of the wheat grains were 16, 17, 18, 19, 20, 21, 22, and 23%, and the storage temperatures were 10, 15, 20, and 25 degrees C. Samples were divided into two groups: one group with foreign materials and one without foreign materials. Odor, germination rate, and fat acidity of the samples during temporary storage were investigated. The following results were obtained: A) The first sign of deterioration in quality of the wheat grain was the occurrence of mould. B) Moisture content and storing temperature were more significant factors than foreign materials in quality deterioration. C) Under conditions of 16% moisture content and storage temperature of 25 degrees C, the maximum storage duration in which samples did not deteriorate was 14 days. D) Foreign materials should be removed before wheat grain is stored
Show more [+] Less [-]Investigation on organosolv pulping of wheat straw
1998
Saeid Mahdavi | Abdolrahman Hosseinzadeh | Ahmad Jahan latibari | Hossein Resalati | Abbas Fakhryan roghani
Effect of water deficiency on yield of wheat
1998
Rodrigues, O. | Lhamby, J.C.B. | Didonet, A.D. | Marchese, J.A. | Scipioni, C.
Effect of wheat flour brew with Bifidobacterium bifidum on rheological properties of wheat flour dough
1998
Cho, N.J. (Hyejeon College, Chungnam (Korea Republic). Department of Baking Technology) | Lee, S.K. (Konkuk University, Seoul (Korea Republic). Department of Applied Biology and Chemistry) | Kim, S.K. (Dankook University, Seoul (Korea Republic). Department of Food Science and Nutrition) | Joo, H.K. (Sunmoon University, Asan (Korea Republic). Department of Food Resources and Technology)
Investigation on the effect of arsenic on wheat seed germination
1998
Xiao Ling | Liang Quanshe | Wang Qinghua (Northwestern Agricultural Univ., Yangling, Shaanxi (China))
Effect of wheat bug (Eurygaster integriceps) damage on quality of a wheat variety grown in Turkey
1998
Karababa, E. | Ozan, A.N.
Wheat bug (Eurygaster integriceps) damaged samples of a bread wheat variety (Ankara 093/44) were investigated. The damaged kernels were separated and added back to the sound wheat in different proportions (1%, 3%, 5%, 7%, 9% and 15%). These damaged samples were compared with undamaged sample (Control). A significant reduction in physical properties of wheat and protein quality parameters such as sedimentation value, gluten content, farinograph peak time, stability time and mixing tolerance index; alveograph P, L and W values of damaged flour samples were observed due to the increasing damaged kernel proportions. Wheat samples which have more than 5% bug damaged kernels showed significantly low-quality properties. The highly bug-damaged kernel samples were not available for making good-quality bread.
Show more [+] Less [-]