Analisis gugus fungsi, distribusi, dan ukuran partikel tinta stempel dari ekstrak gambir (Uncaria gambir Roxb) dengan senyawa pengomplek NaOH dan Al2(SO4)3

Silfia, S; Failisnur, Failisnur; Sofyan, Sofyan

doi:10.24960/jli.v8i1.3886.31-38

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…Kandungan utamanya adalah catechin (7-33%) dan catechu tannat acid (20%-55%) (Achmad et al, 2012). Gambir banyak dimanfaatkan peneliti sebagai pewarna (Failisnur and Sofyan, 2016), penyamak nabati (Sutyasmi, 2017) dan bahan pembuat tinta (Silfia et al, 2018). Manfaat gambir juga sudah dirasakan oleh masyarakat lebih luas, karena gambir sudah digunakan untuk pengobatan luka, bisul, asma, sakit kepala, penyakit gastrointestinal, infeksi bakteri/jamur, gusi, nyeri gigi, kanker, sirosis, demam, diabetes, rematik, disentri dan radang saluran kemih (Andre, 2013).…”

Section: Pendahuluanunclassified

Kenaikan nilai aktivitas antioksidan nanokatekin dibanding katekin sediaan konvensional dan peluang aplikasinya pada hard candy

Malrianti

Kasim²,

Asben³

et al. 2020

JLI Padang

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Section: Pendahuluanunclassified

Kenaikan nilai aktivitas antioksidan nanokatekin dibanding katekin sediaan konvensional dan peluang aplikasinya pada hard candy

Malrianti

Kasim²,

Asben³

et al. 2020

JLI Padang

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“…This pattern resembles that found from a stamp ink made from Gambier using NaOH and Al 2 (SO 4 ) 3 complexes. Gambier tannin absorption peaks at wavenumber 3314.65 cm -1 due to the O-H groups in the phenol compound [23]. FTIR peak was found at wave number 3356.25 cm -1 corresponding to O-H groups in dry tannin extract [24].…”

Section: B Ftir Measurement Of Dyestuffmentioning

confidence: 99%

Natural Liquid Dyestuff from Wastewater of Gambier Processing (Uncaria gambir Roxb) as Textile Dye

Sofyan¹,

Failisnur²,

Silfia³

et al. 2020

Int. J. Adv. Sci. Eng. Inf. Technol.

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Wastewater of Gambier (Uncaria gambier Roxb) is a byproduct of pressing gambier leaves used for textile dyes. This wastewater cannot be stored for a long time to ease the moldy and rot process. The use of textile dye directly requires several long process steps. The study's purpose was to make a natural liquid dyestuff from gambier wastewater using varying mordant concentrations and test the quality of the dyestuff on cotton fabrics. The gambier wastewater was reacted with the FeSO 4 mordant to form a concentrated liquid used directly to dye textiles in a rapid and straightforward process. The study investigated varying the concentration of the FeSO 4 mordant from 1 to 5% (by weight). The reaction between wastewater and mordant was conducted while being stirred at 300 rpm and 70 o C for 30 minutes. It was generated a dark green liquid dyestuff. The concentration of FeSO 4 influenced the color strength (K/S) of the dyestuff and resulted in K/S values from 2.49-3.70. This dyestuff-colored cotton cloth a greenish-grey color. The resulting color depth depended on diluting the dyestuff with K/S values ranging from 6.34 to 12.64. The color fastness against washing, sunlight, and rubbing varied from reasonably good (2-3), good (4), and very good (4-5). It was observed that after a year of storage, the dyestuff retained its color, was stable and showed no visible sign of mold contamination, and was still able to dye the fabric effectively.

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The identification of the components, molecular structures and quality of stamp ink from gambier extract

Silfia¹,

Sofyan²,

Failisnur³

et al. 2020

IOP Conf. Ser.: Mater. Sci. Eng.

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Stamp ink is a major product of gambier plant (Uncaria gambir) extracts. Its level of tannins is usually high, making it an ideal raw material in the production of dyes and stamp ink. Hence, it is necessary to identify these color forming components in stamp ink. The aim of this study was to identify the components, molecular structures, and the quality of gambier stamp ink complexed with FeSO4. Five samples of the ink were complexed with 30%, 25%, 20%, 15% and 10% FeSO4. The Gas Chromatography - Mass Spectrometry (GC-MS) showed the optimum results with 25% FeSO4 treatment. It contained 11.44% pyrocatechol, 3.74% glycerol, and 2 Propanol, 1 Amina 81.98%, with clearer printings on paper compared with other treatments.

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Analisis gugus fungsi, distribusi, dan ukuran partikel tinta stempel dari ekstrak gambir (Uncaria gambir Roxb) dengan senyawa pengomplek NaOH dan Al2(SO4)3

Cited by 3 publications

References 15 publications

Kenaikan nilai aktivitas antioksidan nanokatekin dibanding katekin sediaan konvensional dan peluang aplikasinya pada hard candy

Kenaikan nilai aktivitas antioksidan nanokatekin dibanding katekin sediaan konvensional dan peluang aplikasinya pada hard candy

Natural Liquid Dyestuff from Wastewater of Gambier Processing (Uncaria gambir Roxb) as Textile Dye

The identification of the components, molecular structures and quality of stamp ink from gambier extract

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