Studies on the chemistry of the determination of boron with curcumin

Dyrssen, David; Novikov, Yuri P.; Uppström, Leif R.

doi:10.1016/s0003-2670(01)81893-6

Cited by 45 publications

(17 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Examples of these methods are curcumin (88,89), carmine (88,89), methylene blue (89), azomethine-H (90), and others such as quinalizarine, arsenazo, and crystal violet (65). Two B-curcumin complexes, rubocurcumin in the presence of oxalic acid and rosocyanin in the presence of strong sulfuric acid, are of practical significance for B determination (91). The commonly used curcumin method employs the reddish-brown rosocyanin complex, which has a 545 nm absorption maximum at about pH 1.0.…”

Section: Colorimetric Methodsmentioning

confidence: 99%

Boron Determination—A Review of Analytical Methods

Sah

Brown

1997

Microchemical Journal

210

141

View full text Add to dashboard Cite

Section: Colorimetric Methodsmentioning

confidence: 99%

Boron Determination—A Review of Analytical Methods

Sah

Brown

1997

Microchemical Journal

210

141

View full text Add to dashboard Cite

“…The concentration of boron in the initial feed and the water was determined by the curcumin method spectrophotometrically (Dyrssen et al 1972). A 5 g feed was crushed and extracted with 10 mL of distilled water boiling for 15 minutes under reflux and was filtered as quickly as possible (Porter et al 1981).…”

Section: Diet Preparation and Experimental Designmentioning

confidence: 99%

Effect of boric acid in rainbow trout (Oncorhynchus mykiss) growth performance

Öz

İnanan

Dikel

2018

Journal of Applied Animal Research

View full text Add to dashboard Cite

The effects of different levels of boron supplementation to feed on the growth parameters of rainbow trout (Oncorhynchus mykiss) were investigated for the first time using four diet variations (0.01%, 0.05%, 0.10%, and 0.20% of boron in feed) in addition to a control diet (without boron). After 120 days of feeding, the final weight (FW), weight gain, condition factor, feed intake, feed conversion rates, specific growth rate, protein efficiency ratio, survival rates, economic conversion rate, and economic profit index were calculated for each treatment and compared with the control as growth parameters. The initial weight was 17.89 ± 1.12 g; at the end of feeding, the FWs were determined as 89.91 ± 2.11 g for the control and 90.56 ± 1.34 g, 99.21 ± 3.76 g, 88.14 ± 2.43 g, and 78.74 ± 1.47 g for 0.01%, 0.05%, 0.10%, and 0.20% of boron feed treatments, respectively. The results of this study show that feeding rainbow trout with 0.05% boron-supplemented feed stimulates the growth parameters, but 0.20% of boron supplementation inhibits the growth of rainbow trout. ARTICLE HISTORY

show abstract

“…Aqueous curcumin exists in its neutral (AH 3 ) form up to pH 8 and in protonated (AH þ 4 ) form at pH < 1 [36,37] (Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

“…The acidic (AH þ 4 ), neutral (AH 3 ), monobasic (AH À 2 ), dibasic (AH 2À ) and the tribasic (A 3À ) forms of curcumin[37].…”

mentioning

confidence: 99%