Exploring Plant Species in Vietnam for the Production of pH Indicator Paper
Purple cabbage, turmeric, magenta, amaranth, and red beet contain colour anthocyanins. These colours change according to pH environments. This research aims to explore the potential of utilizing various plant species, such as purple cabbage, turmeric, magenta, amaranth, and red beet, to develo...
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2024
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| Thư viện lưu trữ: | Thư viện Trường Đại học Đà Lạt |
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oai:scholar.dlu.edu.vn:123456789-3339 |
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Thư viện Trường Đại học Đà Lạt |
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English |
| topic |
purple cabbage, turmeric, magenta, amaranth, red beet, pH indicator |
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purple cabbage, turmeric, magenta, amaranth, red beet, pH indicator Vu T. Hoa Nguyen Q. Thang Le V. Tan Lê, Thị Thanh Trân Exploring Plant Species in Vietnam for the Production of pH Indicator Paper |
| description |
Purple cabbage, turmeric, magenta, amaranth, and red beet contain colour anthocyanins. These
colours change according to pH environments. This research aims to explore the potential of
utilizing various plant species, such as purple cabbage, turmeric, magenta, amaranth, and red beet,
to develop pH indicator paper. The colour solutions of these plants were extracted with deionized
water. The extracted solutions were analyzed by IR spectra and UV-Vis spectra. The peak of OH,
C=O, and C-O in IR spectra changed in alkaline, neutral, and acidic environments, respectively.
The maximum absorption wavelengths of the extracted solutions in UV-Vis spectra were 533 nm
and 600 nm in alkaline and neutral environments, respectively. The pH indicator paper was created
by impregnating plain white computer paper with extract solutions to achieve uniform colouration.
These prepared pH indicator papers were used to detect the pH of household chemicals, including
milk, soap, toothpaste, and various fruits and vegetables. The study demonstrates that these plant
species exhibit excellent sensitivity to different pH values, possess good durability, and remain
unaffected by environmental factors. The developed pH indicator paper holds promising practical
applications for testing the pH of diverse chemicals. In this study, the pH indicator paper was
employed to determine the acidity or alkalinity levels of commonly found household items,
including fruits, beverages, and cleaning solutions. The results highlight the versatility and
convenience of utilizing plant-based pH indicator paper for monitoring pH variations in daily life
applications. |
| format |
Journal article |
| author |
Vu T. Hoa Nguyen Q. Thang Le V. Tan Lê, Thị Thanh Trân |
| author_facet |
Vu T. Hoa Nguyen Q. Thang Le V. Tan Lê, Thị Thanh Trân |
| author_sort |
Vu T. Hoa |
| title |
Exploring Plant Species in Vietnam for the Production of pH Indicator Paper |
| title_short |
Exploring Plant Species in Vietnam for the Production of pH Indicator Paper |
| title_full |
Exploring Plant Species in Vietnam for the Production of pH Indicator Paper |
| title_fullStr |
Exploring Plant Species in Vietnam for the Production of pH Indicator Paper |
| title_full_unstemmed |
Exploring Plant Species in Vietnam for the Production of pH Indicator Paper |
| title_sort |
exploring plant species in vietnam for the production of ph indicator paper |
| publishDate |
2024 |
| url |
https://scholar.dlu.edu.vn/handle/123456789/3339 |
| _version_ |
1798256996369039360 |
| spelling |
oai:scholar.dlu.edu.vn:123456789-33392024-03-25T01:32:08Z Exploring Plant Species in Vietnam for the Production of pH Indicator Paper Vu T. Hoa Nguyen Q. Thang Le V. Tan Lê, Thị Thanh Trân purple cabbage, turmeric, magenta, amaranth, red beet, pH indicator Purple cabbage, turmeric, magenta, amaranth, and red beet contain colour anthocyanins. These colours change according to pH environments. This research aims to explore the potential of utilizing various plant species, such as purple cabbage, turmeric, magenta, amaranth, and red beet, to develop pH indicator paper. The colour solutions of these plants were extracted with deionized water. The extracted solutions were analyzed by IR spectra and UV-Vis spectra. The peak of OH, C=O, and C-O in IR spectra changed in alkaline, neutral, and acidic environments, respectively. The maximum absorption wavelengths of the extracted solutions in UV-Vis spectra were 533 nm and 600 nm in alkaline and neutral environments, respectively. The pH indicator paper was created by impregnating plain white computer paper with extract solutions to achieve uniform colouration. These prepared pH indicator papers were used to detect the pH of household chemicals, including milk, soap, toothpaste, and various fruits and vegetables. The study demonstrates that these plant species exhibit excellent sensitivity to different pH values, possess good durability, and remain unaffected by environmental factors. The developed pH indicator paper holds promising practical applications for testing the pH of diverse chemicals. In this study, the pH indicator paper was employed to determine the acidity or alkalinity levels of commonly found household items, including fruits, beverages, and cleaning solutions. The results highlight the versatility and convenience of utilizing plant-based pH indicator paper for monitoring pH variations in daily life applications. 7 10 4889-4893 2024-03-25T01:32:02Z 2024-03-25T01:32:02Z 2023-10 Journal article Bài báo đăng trên tạp chí thuộc SCOPUS, bao gồm book chapter https://scholar.dlu.edu.vn/handle/123456789/3339 en Tropical Journal of Natural Product Research 1. Wencel D, Abel T, McDonagh C. Optical chemical pH sensors. Anal Chem. 2013; 86(1):15-29. https://doi.org/10.1021/ac4035168 2. Xiao-Mei S, Li-Ping M, Nan Z, Wei-Wei Z, Jing-Juan X, and Hong-Yuan C. A polymer dots-based photoelectrochemical pH sensor: simplicity, high sensitivity, and broad-range pH measurement. Anal Chem. 2018; 90(14):8300-8303. https://doi.org/10.1021/acs.analchem.8b02291 3. Okoduwa S I R, Mbora L O, Adu M E, Adeyi A A. 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Chem. 2021; 21(5):1271-1280. https://doi.org/10.22146/ijc.66990 16. Robert B, Eric N W, David M, and Jane N. Hippeastrum hybridum anthocyanins as indicators of endpoint in acid – base titrations. Int. J. Biol. Chem. Sci. 2016; 10(6):2716- 2727. DOI: http://dx.doi.org/10.4314/ijbcs.v10i6.25 17. Savita H B, Namdeo G S, Bhagyashree S S, Nayana V P, Sanobar S S. Acalypha wilkesiana as Natural pH Indicator. Int J. Nat Prod Res. 2014; 4(1):33-35. 18. Khalid D K, Mustapha B I, Naziru A M, Ahmad B. Study of Acid-base Indicator Property of Ethanolic Extract of Nerium indicum Flower. Br J. Pharm Res. [Internet]. 2016; 9(1):1-4. DOI: 10.9734/BJPR/2016/20556 19. Berhane A, Ahmed I, Sahle T, Hiya A, Asgedom G, and Chand R. Studies of Eco- friendly natural acid-base pH indicators properties of two flowering plants from Adi-Nifas and Mai-Nefhi Eritrea. J. Pharmacogn Phytochem. 2018; 7(5):1817-1822 |