Correlation of Uric Acid Content with Fragment Counts in Insect-Infested Flours and Wheat Grains

1969 ◽  
Vol 52 (4) ◽  
pp. 833-836
Author(s):  
N P Sen ◽  
Alberto W Vazquez
Keyword(s):  
Uric Acid ◽  
Acid Content ◽  
Insect Damage ◽  
Wheat Grains ◽  
X Ray

Abstract Seven samples of naturally insect-infested wheat were examined for (a) uric acid content, (b) per cent agricultural damage, (c) whole or equivalent insects, and (d) insect damage as determined by X-ray technique. Thirteen different forms of flours obtained by milling these wheat grains in a Buhler pilot mill were analyzed for uric acid and insect fragment counts. For wheat grains, the correlation between uric acid contents and X-ray data was found to be the best among the six possible intercomparisons. The results for the first break flour samples also indicated good correlation between the uric acid levels and insect fragment counts.

scholarly journals THE URIC ACID CONTENT OF THE BLOOD OF NEW-BORNS

1917 ◽  
Vol 31 (1) ◽  
pp. 261-268
Author(s):  
F.B. Kingsbury ◽  
J.P. Sedgwick
Keyword(s):  
Uric Acid ◽  
Acid Content

Uric acid in the stratum argenteum of toadfishes Opsanus

1980 ◽  
Vol 58 (4) ◽  
pp. 492-496 ◽  
Author(s):  
J. A. C. Nicol
Keyword(s):  
Uric Acid ◽  
Acid Content ◽  
Thin Sheets

The outer chorioid (suprachorioid) of the eye of the toadfish Opsanus is a yellow argenteum which consists of two thin sheets. The inner one contains thin flat crystals of uric acid. The uric acid content is about 40 μg/cm2 of chorioid surface. The outer sheet contains yellow, birefringent granules, as yet uncharacterized. In conjunction with certain features of the retina, the yellow chorioid is responsible for eyeshine in the photopic eye.

scholarly journals Ferulic Acid Content of Barley and Wheat Grains and Head Blight Resistance

2020 ◽  
Vol 26 (4) ◽  
pp. 250-255
Author(s):  
Seul Gi Baek ◽  
Sosoo Kim ◽  
Ja Yeong Jang ◽  
Jeomsoon Kim ◽  
Theresa Lee
Keyword(s):  
Ferulic Acid ◽  
Acid Content ◽  
Blight Resistance ◽  
Head Blight ◽  
Wheat Grains

scholarly journals Synthesis of Heart/Dumbbell-Like CuO Functional Nanostructures for the Development of Uric Acid Biosensor

Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1378 ◽  
Author(s):  
Zafar Ibupoto ◽  
Aneela Tahira ◽  
Hamid Raza ◽  
Gulzar Ali ◽  
Aftab Khand ◽  
...  
Keyword(s):  
Uric Acid ◽  
Photoelectron Spectroscopy ◽  
Lithium Ion ◽  
Nanostructured Material ◽  
Soft Template ◽  
X Ray ◽  
Growth Method ◽  
Enzyme Molecules ◽  
New Generation ◽  
Uric Acid Biosensor

It is always demanded to prepare a nanostructured material with prominent functional properties for the development of a new generation of devices. This study is focused on the synthesis of heart/dumbbell-like CuO nanostructures using a low-temperature aqueous chemical growth method with vitamin B12 as a soft template and growth directing agent. CuO nanostructures are characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) techniques. CuO nanostructures are heart/dumbbell like in shape, exhibit high crystalline quality as demonstrated by XRD, and have no impurity as confirmed by XPS. Apparently, CuO material seems to be porous in structure, which can easily carry large amount of enzyme molecules, thus enhanced performance is shown for the determination of uric acid. The working linear range of the biosensor is 0.001 mM to 10 mM with a detection limit of 0.0005 mM and a sensitivity of 61.88 mV/decade. The presented uric acid biosensor is highly stable, repeatable, and reproducible. The analytical practicality of the proposed uric acid biosensor is also monitored. The fabrication methodology is inexpensive, simple, and scalable, which ensures the capitalization of the developed uric acid biosensor for commercialization. Also, CuO material can be used for various applications such as solar cells, lithium ion batteries, and supercapacitors.

Stored Wheat Insect Infestation Related to Uric Acid as Determined by Liquid Chromatography

1984 ◽  
Vol 67 (3) ◽  
pp. 644-647
Author(s):  
Randy L Wehling ◽  
David L Wetzel ◽  
John R Pedersen
Keyword(s):  
Uric Acid ◽  
Liquid Chromatography ◽  
Acid Content ◽  
Sitophilus Oryzae ◽  
Correlation Coefficients ◽  
Rice Weevil ◽  
Growth Stages ◽  
Granary Weevil ◽  
Lesser Grain Borer ◽  
Late Instar

Abstract Liquid chromatography is used to measure the uric acid content of wheat internally infested by various growth stages of granary weevil (Sitophilus granarius), rice weevil (Sitophilus oryzae), and lesser grain borer (Ryzopertha dominica). Good correlation exists between numbers of insects and uric acid content of grain infested by a given stage of an internally infesting stored product insect, with correlation coefficients ranging from 0.970 to 0.998. Uric acid content of infested grain increases as the insect life cycle progresses, with granary weevil producing the greatest quantities of uric acid followed in order by rice weevil and lesser grain borer. A detection limit for the analytical procedure of less than 1.0 ppm uric acid allows detection of infestation levels as low as one kernel per 100 g grain for late instar granary weevil larvae. This limit is sufficiently sensitive to detect levels of infestation that may be commonly encountered in commerce.

THE EFFECT OF LARGE DOSES OF THIOUREA ON THE COMPOSITION OF THE LIVER AND URINE OF RATS

1956 ◽  
Vol 13 (2) ◽  
pp. 141-149 ◽  
Author(s):  
F. DOLJANSKI ◽  
Z. ESHKOL ◽  
D. GIVOL ◽  
E. KAUFMANN ◽  
E. MARGOLIASH
Keyword(s):  
Uric Acid ◽  
Urinary Excretion ◽  
Ribonucleic Acid ◽  
Acid Content ◽  
Catalase Activity ◽  
Deoxyribonucleic Acid ◽  
Liver Weight ◽  
Liver Glycogen ◽  
Chemical Changes ◽  
Thiourea Treatment

SUMMARY Following the observation that large daily doses of thiourea induced numerous mitoses in the liver of rats [Rachmilewitz, Rosin & Doljanski, 1950], the concomitant chemical changes in the liver and urine of thiourea-treated rats were investigated. It was found that: (1) The mitogenetic reaction, which occurred on the 3rd day of treatment with the drug, was preceded by (a) a decrease in liver catalase activity to 30–50% of the normal within 12 hr; (b) an increase in total liver weight and concentration of liver ribonucleic acid within 2 days. The enlarged liver was normal with respect to protein, lipid, water and deoxyribonucleic acid content. (2) The concentration of liver glycogen decreased markedly on the 1st day of thiourea treatment but returned to normal by the 2nd or 3rd day. (3) During the period of treatment with thiourea there was an increase in the urinary excretion of uric acid, allantoin, and phosphate, as well as glucosuria and polyuria. There was no change in the excretion of urea and total sulphate. (4) All these changes, both in the liver and the urine, were fully reversible on withdrawing the drug.

The uric acid content of the blood of the stellar sea-lion.

1923 ◽  
Vol 21 (3) ◽  
pp. 135-136
Author(s):  
N. W. Rakestraw ◽  
R. E. Swain
Keyword(s):  
Uric Acid ◽  
Acid Content ◽  
Sea Lion
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