Collaborative Studies of Rapid Methods for the Separation of Extraneous Materials from Whole and Degerminated Corn Meal, Prepared Mustard, and Soy Flour

1968 ◽  
Vol 51 (3) ◽  
pp. 522-524
Author(s):  
Mary T Miller
Keyword(s):  
Acid Hydrolysis ◽  
Soy Flour ◽  
Corn Meal ◽  
Rapid Methods ◽  
Collaborative Studies ◽  
Extraneous Material

Abstract Rapid methods based on acid hydrolysis have been developed for the separation of extraneous material from whole and degerminated corn meal, prepared mustard, and soy flour. Collaborative results by the methods were satisfactory for mustard and corn meal, and the methods are recommended for adoption as official, first action. Recovery of extraneous material from soy flour was variable and further study is needed.

Rapid Method for Separation of Extraneous Materials from Whole and Degerminated Corn Meal, Prepared Mustard, and Soy Flour

1967 ◽  
Vol 50 (3) ◽  
pp. 505-509
Author(s):  
Mary T Miller
Keyword(s):  
Acid Hydrolysis ◽  
Rapid Method ◽  
Chloride Solution ◽  
Collaborative Study ◽  
Mineral Oil ◽  
Soy Flour ◽  
Corn Meal ◽  
Hydrolysis Method ◽  
Separatory Funnel ◽  
Time Required

Abstract A rapid method, based on acid hydrolysis in the presence of mineral oil, has been developed to separate extraneous materials from whole and degerminated corn meal, prepared mustard, and soy flour. Corn meal may be first examined for rodent excreta by method 36.032 and then examined for light filth, or it may be analyzed directly for light filth by the acid hydrolysis method. Soy flour is prepared for analysis by solubilizing the protein in dilute sodium chloride solution in the presence of mineral oil. The Kilborn separatory funnel is used with all 3 products. The proposed method improves recoveries of insect fragments by 13—34% and rodent hair recoveries hy 25—54%. Analyst time required for actual assay is reduced by at least onethird. The method will be subjected to collaborative study

CORN MEAL/SOY FLOUR BLENDS: CHARACTERISTICS AND FOOD APPLICATIONS

2008 ◽  
Vol 36 (7) ◽  
pp. 1026-1031 ◽  
Author(s):  
G. N. BOOKWALTER ◽  
W. F. KWOLEK ◽  
L. T. BLACK ◽  
E. L. GRIFFIN
Keyword(s):  
Soy Flour ◽  
Corn Meal ◽  
Food Applications ◽  
Flour Blends

Extraneous Materials in Flour

1965 ◽  
Vol 48 (3) ◽  
pp. 553-553
Author(s):  
Garland L Reed
Keyword(s):  
Acid Hydrolysis ◽  
Hydrolysis Method ◽  
Collaborative Studies ◽  
Aoac Method

Abstract Collaborative studies are planned on the AACC acid hydrolysis method for extraneous materials in flour. This proposed method appears equal to AOAC method 36.025 (a) and provides some advantages over it.

scholarly journals Development of Defatted Soy Flour-Based Adhesives by Acid Hydrolysis of Carbohydrates

Polymers ◽  
2017 ◽  
Vol 9 (12) ◽  
pp. 153 ◽  
Author(s):  
◽  
◽  
◽  
◽  
◽  
...  
Keyword(s):  
Acid Hydrolysis ◽  
Soy Flour ◽  
Defatted Soy Flour ◽  
Hydrolysis Of

Extraneous Materials in Dairy Products: Cheese

1967 ◽  
Vol 50 (3) ◽  
pp. 501-503
Author(s):  
Robert L Stephens
Keyword(s):  
Dairy Products ◽  
Basic Medium ◽  
Collaborative Studies ◽  
Soft Cheese ◽  
Extraneous Material

Abstract A microanalytical method has been developed for extraneous material in cheese. The method is applicable to very hard, hard, semi-soft, and soft cheese, but not to cheese containing spices, herbs, or mold throughout. In the method, the cheese is dispersed in an aqueous basic medium by treatment with the tetrasodium salt of EDTA, the dispersion is digested with pancrcatin, and the extraneous material is isolated by filtration. Results of two collaborative studies are reported. Results of the second study are considered satisfactory, and the method is recommended for adoption as official, first action

Rheometers, Bioreactors, and Vocalization Forces: Using Basic Science Investigations to Help the Voices of Teachers

2008 ◽  
Vol 18 (3) ◽  
pp. 119-125
Author(s):  
Sarah Klemuk
Keyword(s):  
Basic Science ◽  
Tissue Growth ◽  
University Of Iowa ◽  
Support Cell ◽  
Rest Periods ◽  
Collaborative Studies ◽  
Professional Voice Users ◽  
The University ◽  
Science Investigations ◽  
Professional Voice

Abstract Collaborative studies at the University of Iowa and the National Center for Voice and Speech aim to help the voices of teachers. Investigators study how cells and tissues respond to vibration doses simulating typical vocalization patterns of teachers. A commercially manufactured instrument is uniquely modified to support cell and tissue growth, to subject tissues to vocalization-like forces, and to measure viscoelastic properties of tissues. Through this basic science approach, steps toward safety limits for vocalization and habilitating rest periods for professional voice users will be achieved.

Bleaching ability of pre-hydrolyzed pulps in the context of a biorefinery mill

TAPPI Journal ◽  
2013 ◽  
Vol 12 (11) ◽  
pp. 49-53 ◽  
Author(s):  
CHRISTINE CHIRAT ◽  
LUCIE BOIRON ◽  
DOMINIQUE LACHENAL
Keyword(s):  
Carbon Content ◽  
Acid Hydrolysis ◽  
13C Nmr ◽  
Kraft Lignin ◽  
Kappa Number ◽  
Hydroxyl Groups ◽  
Kraft Pulps ◽  
Quaternary Carbon ◽  
Oxygen Delignification

Autohydrolysis and acid hydrolysis treatments were applied on mixed softwood chips. The cooking ability was studied by varying the alkali and duration of the cook. Pulps with kappa numbers varying from 30 to 70 were obtained. The bleaching ability of these pulps was studied and compared to control kraft pulps. The prehydrolyzed pulps were shown to be more efficiently delignified by oxygen than the control kraft pulps starting from the same kappa number. Furthermore, the final bleaching was also easier for these pulps. It was also shown that extensive oxygen delignification applied on high-kappa pre-hydrolyzed pulps could be a way to improve the overall yield, which is a prerequisite for the development of such biorefinery concepts. Lignin was isolated from the control kraft and the two pre-hydrolyzed kraft pulps and analyzed by 13C NMR. Lignins from pre-hydrolyzed kraft pulps had similar free phenolic groups content to the control kraft lignin, but their aliphatic hydroxyl groups and β-O-4 content were lower than for the control lignin. The quaternary carbon content was the same for all the samples.

DETERMINATION OF MICRO-AMOUNTS OF 5β-PREGNAN-3α-OL-20-ONE IN URINE USING INFRARED-SPECTROMETRY

1962 ◽  
Vol 41 (2) ◽  
pp. 234-246 ◽  
Author(s):  
H. J. van der Molen
Keyword(s):  
Infrared Spectrum ◽  
Quantitative Determination ◽  
Acid Hydrolysis ◽  
Chromatographic Separation ◽  
Pure Form ◽  
Infrared Spectrometry ◽  
Hydrolysis Of

ABSTRACT A procedure for the quantitative determination of 5β-pregnan-3α-ol-20-one in urine is described. After acid hydrolysis of the pregnanolone-conjugates in urine, the free steroids are extracted with toluene. Pregnanolone is isolated in a pure form as its acetate; after chromatographic separation of the free steroids on alumina, the fraction containing pregnanolone is acetylated and rechromatographed on alumina. Quantitative determination of the isolated pregnanolone-acetate is carried out with the aid of the infrared spectrum recorded by a micro KBr-wafermethod. The reliability of the method under various conditions is discussed under the headings, specificity, accuracy, precision and sensitivity. It is possible to determine 30–40 μg pregnanolone in a 24-hours urine portion with a precision of 25%.

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