Sugar Analysis by Alkaline Ferricyanide Method - Determination of Ferrocyanide by Iodometric and Other Procedures

Englis, D. T.; Becker, Heinz

doi:10.1021/i560116a011

Cited by 8 publications

(5 citation statements)

References 5 publications

(5 reference statements)

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“…It is based on the reaction between a hydrolyzed carbohydrate solution and a coloring reagent leading to a color detectable with a spectrometer in the visible range. Reagents commonly used for coloration include phenol (DuBois, Gilles, Hamilton, Rebers, & Smith, 1956), alkaline ferricyanide (Englis & Becker, 1943), alkaline cupric tartrate (Munson & Walker, 1906), and anthrone (Dreywood, 1946).…”

Section: Methods For Quantification Of Total Carbohydratesmentioning

confidence: 99%

Standard methods for Apis mellifera royal jelly research

Bíliková

Casabianca

et al. 2017

Journal of Apicultural Research

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Royal jelly, a honey bee secretion, plays a critical role in caste determination in honey bees because it serves as the source of nutrition for young larvae destined to become queens. It is also fed to adult queens. Royal jelly possesses numerous functional properties and thus has been used as a medication, health food, and cosmetic in many countries. In this paper, we first introduce a traditional method for producing royal jelly by artificial larvae grafting and a newly developed method that does not require grafting of larvae. We describe protocols for the storage and freeze-drying of royal jelly to preserve its biological properties. Routine methods for determination of two important quality criteria, water content and trans-10-hydroxy-2-decenoic acid content, are outlined. On a dry basis, protein, carbohydrate, and fatty acids were found to be the 3 most abundant components of royal jelly. Methods for their isolation, identification, and quantification are described. Because royal jelly is susceptible to contamination with veterinary drugs and acaricides, we also describe methods for detection and quantification of some veterinary drugs and acaricides in royal jelly.Mé todos estándar para la investigació n de la jalea real de Apis mellifera La jalea real, una secreció n de abejas, desempeña un papel crítico en la determinació n de castas en la abeja melífera, ya que sirve como fuente de nutrició n para larvas jó venes destinadas a convertirse en reinas. También alimenta a las reinas adultas. La jalea real posee numerosas propiedades funcionales y por lo tanto se ha utilizado como un medicamento, alimento saludable y cosmético en muchos países. En este artículo, introducimos un método tradicional para producir jalea real mediante el injerto artificial de larvas y un método recientemente desarrollado que no requiere injerto de larvas. Describimos protocolos para el almacenamiento y la liofilizació n de la jalea real para preservar sus propiedades bioló gicas. Se describen métodos rutinarios para la determinació n de dos importantes criterios de calidad, el contenido de agua y el de ácido trans-10-hidroxi-2-decenoico. En una base seca, proteínas, carbohidratos y ácidos grasos fueron los tres componentes más abundantes de la jalea real. Se describen métodos para su aislamiento, identificació n y cuantificació n. Debido a que la jalea real es susceptible a la contaminació n con medicamentos veterinarios y acaricidas, también describimos métodos para la detecció n y cuantificació n de algunos medicamentos veterinarios y acaricidas en jalea real.

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Section: Methods For Quantification Of Total Carbohydratesmentioning

confidence: 99%

Standard methods for Apis mellifera royal jelly research

Bíliková

Casabianca

et al. 2017

Journal of Apicultural Research

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“…Sugar content was measured by ferricyanide method using a spectrometer (Englis & Becker, 1943). Sample used in the measurement was apical leaf in the last day of cultivation from all lines.…”

Section: Measurement Of Sugar Contentmentioning

confidence: 99%

“…Sugar analysis was performed using ferricyanide method (Englis& Becker, 1943). Results of sugar analysis was shown in Table 3.5.…”

Section: Sugar Contentmentioning

confidence: 99%

The Effect of Led Light on Production of Female Flowers in Cucumer (Cucumis Sativus L.)

Riadi

Esyanti

Faizal

2015

MIJST

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Light quality is one of the main factors that affect the productivity of cucumber plants, especially in induction of flowers. In this study, two lines of cucumber (Mercy and KE 27187) were treated with red (R), blue (B) and yellow (Y) light provided by LED (light emitting diode) with different compositions; RB (80:20) and RBY (80:10:10) for 8 h. Control plants were incubated under HPS lamps and TLD. The results showed that treatment of RB8 generate higher biomass and growth rate compared with RBY in both cucumber lines. Interestingly, RBY light increased sucrose content in plants, which positively correlate to the number of their female flowers. However, the energy efficiency of plants treated under LED light remains a major obstacle compared with control plants.

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“…. (10) Meyer, K. H" Kolloid-Z., 95, 70 (1941). (11) Montonna, R. E., and Jilk, L. T., J. Phys, Chem., 45,1374 (1941).…”

mentioning

confidence: 99%

“…Potassium ferricyanide is a relatively powerful oxidizing agent in alkaline medium and this oxidant has been employed in the oxidation of sugars, salts of metals like arsenic, antimony, tin, chromium, cobalt, manganese, cerium, and thallium; vanadyl sulfate; and sulfur-containing compounds (2, 4, 5,9, 21,24). In these reactions and other succeeding experiments with ferricyanide, the ferrocyanide thus formed was measured by titration with permanganate (2, 4, 5, 28), or ceric sulfate (1) in acid medium or iodometrically (10). Where direct titrations were made the end point was determined potentiometrically (20,26,28,29,30).…”

mentioning

confidence: 99%