Decomposition Behavior of Curcumin during Solar Irradiation when Contact with Inorganic Particles

Nandiyanto, A B D; Wiryani, A S; Rusli, A; Purnamasari, A; Abdullah, Ade Gafar; Riza, Lala Septem

doi:10.1088/1757-899x/180/1/012135

Cited by 5 publications

(5 citation statements)

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“…The appearance of these peaks verified the successful isolation of curcumin from turmeric. The present peaks regarding the curcumin peaks are in a good agreement with other reports[8][9].…”

supporting

confidence: 93%

“…For being used for variation of curcumin concentration, the 100 ppm of curcumin was diluted by aqueous solution. Detailed information regarding the extraction of curcumin is explained in our previous reports [8,9]. In addition, to ensure the successful isolation of curcumin from turmeric , several characterizations were conducted, including a Fourier Transform Infra Red (FTIR; Prestige 21, Shimadzu Corp., Japan)) for analyzing the chemical composition in the sample.…”

Section: Implementation Of Spectrophotometer For Analyzing the Concentration Of Curcumin Preparation Of Curcuminmentioning

confidence: 99%

“…Similar to the above measuring procedure for the present photometer, the analysis of curcumin concentrations using the standard UV-Visible spectrophotometer used Beer-lambert law at a wavelength of 425 nm. The implementation of above equation can be redefined into [7][8], [10] where Co and Ct are the concentration of curcumin at the initial time and that at the measured time, respectively. Ao and At are the absorption peak at the initial time and that at the measured time, respectively.…”

Section: Measurement Proceduresmentioning

confidence: 99%

“…In our previous studies, we have already worked with the concentration analysis [7][8][9][10]. All analyses are typically employed and can not be separated with the spectrophotometer.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the purpose of this study was to introduce a simple, rapid analysis, portable, and low-cost spectrophotometer. This spectrophotometer has been applied in our previous studies [7,8,10], but we did not discuss in detail how the instruments work.…”

Section: Introductionmentioning

confidence: 99%

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A Simple, Rapid Analysis, Portable, Low-cost, and Arduino-based Spectrophotometer with White LED as a Light Source for Analyzing Solution Concentration

et al. 2018

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The purpose of this study was to demonstrate a simple, rapid analysis, portab le, and inexpensive spectrophotometer. Different from other spectrophotometers, the present instrument consisted of a single white light-emmiting-diode (LED) as a light source, a light sensor, and arduino electronic card as an acquisition system. To maintain a constant light intensity, a common white -color LED emitting a 450-620 nm continous spectrum was employed. Software was written in C++ to control photometer through a USB interface and for data acquistion to the computer. The instrument is designed to b e simple and compacted with sizes of 200 x 130 x 150 mm for length, width, and height, respectively. The analysis of the total cost isab out less than 500 USD, while commercially available offers price of more than 10,000 USD. Thus, this makes the present instrument feasib le for teaching support media in developing countries. The effectiveness of the present spectrophotometer for analyzing solution concentration (i.e. curcumin) was also demonstrated. Interestingly, the present spectrophotometer is ab le to measure the concentration of curcumin precisely with an accuracy of more than 90%. Different from commercially availab le standard UV-visib le spectrophotometers that have limitations in the analysis of concentration of less than 50 ppm, the present system can measure the concentration with no limitation since the mea surement is b ased on the LED light b eing penetrated.

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“…The appearance of these peaks verified the successful isolation of curcumin from turmeric. The present peaks regarding the curcumin peaks are in a good agreement with other reports[8][9].…”

supporting

confidence: 93%

Section: Implementation Of Spectrophotometer For Analyzing the Concentration Of Curcumin Preparation Of Curcuminmentioning

confidence: 99%

Section: Measurement Proceduresmentioning

confidence: 99%

“…In our previous studies, we have already worked with the concentration analysis [7][8][9][10]. All analyses are typically employed and can not be separated with the spectrophotometer.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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