Sequential Injection System for Analysis of Degree Brix, Orthophosphate and pH in Raw Sugarcane Juice Applicable to Sugar Industry

This work presents, for the first time, a new sequential injection analysis (SIA) method to simultaneously analyze degree Brix, orthophosphate and pH in raw cane juice. These key parameters relate to price of harvested sugarcane and quality of cane juice for sugar production. The SIA system employed...

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Autores principales:	Phoonthawee Saetear, Nattinee Saechua, Kamonthip Sereenonchai
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	sugarcane juice pH Brix phosphate schlieren effect molybdenum blue Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/1b1a95c5486647beb69b109381e47818
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spelling	oai:doaj.org-article:1b1a95c5486647beb69b109381e478182021-11-11T18:29:04ZSequential Injection System for Analysis of Degree Brix, Orthophosphate and pH in Raw Sugarcane Juice Applicable to Sugar Industry10.3390/molecules262164841420-3049https://doaj.org/article/1b1a95c5486647beb69b109381e478182021-10-01T00:00:00Zhttps://www.mdpi.com/1420-3049/26/21/6484https://doaj.org/toc/1420-3049This work presents, for the first time, a new sequential injection analysis (SIA) method to simultaneously analyze degree Brix, orthophosphate and pH in raw cane juice. These key parameters relate to price of harvested sugarcane and quality of cane juice for sugar production. The SIA system employed two detectors: the first detector is a diode-array spectrophotometer, equipped with a regular flow cell, for measurements of degree Brix and orthophosphate. Quantitative of degree Brix (°Bx; ca. % (<i>w</i>/<i>w</i>) sucrose) was based on manipulation of the schlieren effect at the interface between plugs of sample and water. Orthophosphate analysis was carried out based on the molybdenum blue method with significant reduction in consumption of the reagents. Compensation of the schlieren effect from sucrose for determination of orthophosphate was achieved by using a dual-wavelength spectrometric detection. Second detector is a pH-sensing device, called ion-selective field-effect transistors (ISFET). The ISFET is based on the current through the ISFET arising according to the H<sup>+</sup> concentration in solution. Our developed SIA system provides linear calibration graphs fitting for purpose in analysis of sugarcane juice (pH: 0–14, °Bx: 1.0–7.0 and P<sub>2</sub>O<sub>5</sub>: 20–200 mg L<sup>−1</sup>). Simultaneous analysis of sugarcane juice for pH, °Bx and P<sub>2</sub>O<sub>5</sub> is carried out within 5 min (12 sample per h). Precision of SIA system is acceptable (RSD < 3%). Our SIA system gave quantitative results insignificantly different, as compared with conventional methods for analysis of pH, °Bx and P<sub>2</sub>O<sub>5</sub> in sugarcane juice.Phoonthawee SaetearNattinee SaechuaKamonthip SereenonchaiMDPI AGarticlesugarcane juicepHBrixphosphateschlieren effectmolybdenum blueOrganic chemistryQD241-441ENMolecules, Vol 26, Iss 6484, p 6484 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	sugarcane juice pH Brix phosphate schlieren effect molybdenum blue Organic chemistry QD241-441
spellingShingle	sugarcane juice pH Brix phosphate schlieren effect molybdenum blue Organic chemistry QD241-441 Phoonthawee Saetear Nattinee Saechua Kamonthip Sereenonchai Sequential Injection System for Analysis of Degree Brix, Orthophosphate and pH in Raw Sugarcane Juice Applicable to Sugar Industry
description	This work presents, for the first time, a new sequential injection analysis (SIA) method to simultaneously analyze degree Brix, orthophosphate and pH in raw cane juice. These key parameters relate to price of harvested sugarcane and quality of cane juice for sugar production. The SIA system employed two detectors: the first detector is a diode-array spectrophotometer, equipped with a regular flow cell, for measurements of degree Brix and orthophosphate. Quantitative of degree Brix (°Bx; ca. % (<i>w</i>/<i>w</i>) sucrose) was based on manipulation of the schlieren effect at the interface between plugs of sample and water. Orthophosphate analysis was carried out based on the molybdenum blue method with significant reduction in consumption of the reagents. Compensation of the schlieren effect from sucrose for determination of orthophosphate was achieved by using a dual-wavelength spectrometric detection. Second detector is a pH-sensing device, called ion-selective field-effect transistors (ISFET). The ISFET is based on the current through the ISFET arising according to the H<sup>+</sup> concentration in solution. Our developed SIA system provides linear calibration graphs fitting for purpose in analysis of sugarcane juice (pH: 0–14, °Bx: 1.0–7.0 and P<sub>2</sub>O<sub>5</sub>: 20–200 mg L<sup>−1</sup>). Simultaneous analysis of sugarcane juice for pH, °Bx and P<sub>2</sub>O<sub>5</sub> is carried out within 5 min (12 sample per h). Precision of SIA system is acceptable (RSD < 3%). Our SIA system gave quantitative results insignificantly different, as compared with conventional methods for analysis of pH, °Bx and P<sub>2</sub>O<sub>5</sub> in sugarcane juice.
format	article
author	Phoonthawee Saetear Nattinee Saechua Kamonthip Sereenonchai
author_facet	Phoonthawee Saetear Nattinee Saechua Kamonthip Sereenonchai
author_sort	Phoonthawee Saetear
title	Sequential Injection System for Analysis of Degree Brix, Orthophosphate and pH in Raw Sugarcane Juice Applicable to Sugar Industry
title_short	Sequential Injection System for Analysis of Degree Brix, Orthophosphate and pH in Raw Sugarcane Juice Applicable to Sugar Industry
title_full	Sequential Injection System for Analysis of Degree Brix, Orthophosphate and pH in Raw Sugarcane Juice Applicable to Sugar Industry
title_fullStr	Sequential Injection System for Analysis of Degree Brix, Orthophosphate and pH in Raw Sugarcane Juice Applicable to Sugar Industry
title_full_unstemmed	Sequential Injection System for Analysis of Degree Brix, Orthophosphate and pH in Raw Sugarcane Juice Applicable to Sugar Industry
title_sort	sequential injection system for analysis of degree brix, orthophosphate and ph in raw sugarcane juice applicable to sugar industry
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/1b1a95c5486647beb69b109381e47818
work_keys_str_mv	AT phoonthaweesaetear sequentialinjectionsystemforanalysisofdegreebrixorthophosphateandphinrawsugarcanejuiceapplicabletosugarindustry AT nattineesaechua sequentialinjectionsystemforanalysisofdegreebrixorthophosphateandphinrawsugarcanejuiceapplicabletosugarindustry AT kamonthipsereenonchai sequentialinjectionsystemforanalysisofdegreebrixorthophosphateandphinrawsugarcanejuiceapplicabletosugarindustry
_version_	1718431809548582912

Sequential Injection System for Analysis of Degree Brix, Orthophosphate and pH in Raw Sugarcane Juice Applicable to Sugar Industry

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