Characteristics of Microcrystalline Cellulose from Coir Fibers

Gichuki, Joyline; Kareru, Patrick; Gachanja, Anthony; Ngamau, C N

doi:10.1080/15440478.2020.1764441

Cited by 13 publications

(6 citation statements)

References 28 publications

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“…All spectra exhibited typical absorption peaks of native cellulose at approximately 3400, 2900, 1640, 1430, 1370, and 890 cm −1 . As reported previously, the absorption peak near 3400 cm −1 is induced by the stretching vibration of ‐OH group (Gichuki et al, 2020). The peak around 2900 cm −1 corresponds to the stretching vibration of C‐H, which provides information on the general organic content of the fiber.…”

Section: Resultssupporting

confidence: 72%

“…MCC can be obtained from many sources, including pomelo peel (Liu et al, 2018), fruit bunch stalk of date palm (Alotabi et al, 2020), coir fibers (Gichuki et al, 2020), brown algae Posidonia oceanica (Tarchoun et al, 2019), roselle fibers (Kian et al, 2017), and so on. The extracting sources for MCC mainly determine their properties (size, shape, physicochemical and structural characteristics), therefore, it is a scientific hot button to search suitable processes for producing cellulose derivatives with desirable properties for different applications from specific source (Ventura-Cruz & Tecante, 2021).…”

mentioning

confidence: 99%

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Physicochemical properties and structure characterization of microcrystalline cellulose from pomelo fruitlets

Huan

et al. 2022

Food Processing Preservation

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In this study, physicochemical and structural properties of microcrystaline cellulose (MCC) from pomelo fruitlets using different drying methods were analyzed and compared with commercial MCC. The results showed that oil‐holding capacity (OHC), water‐holding capacity (WHC), swelling properties, cholesterol adsorption capacity, and pancreatic lipase inhibition of MCC from pomelo fruitlets especially using freeze drying were higher than those of commercial MCC (p < .05), indicating their better application properties in food processing and functional activity in gastrointestinal health. Through freeze drying, the decreased particle size and crystallinity were much related with its better OHC, WHC, swelling properties, and cholesterol adsorption capacity when compared to that using hot‐air drying. The reduction effect of freeze‐drying on thermal stability of MCC might be caused by the decreased crystallinity. Overall, MCC from pomelo fruitlets especially with freeze‐drying had higher OHC, hydration property, and potential hypolipidemic activity, suggesting its potential applications in pharmaceuticals and food industry. Practical applications This study investigated physicochemical and structural properties of MCC from pomelo fruitlets using different drying methods and compared it with those of commercialized MCC. It was suggested that MCC from pomelo fruitlets especially with freeze‐drying had higher OHC, hydration property, and potential hypolipidemic activity than those of commercial MCC. The results can provide comprehensive evaluation on high‐value application of pomelo fruitlets to produce MCC with desirable properties.

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Section: Resultssupporting

confidence: 72%

mentioning

confidence: 99%

Physicochemical properties and structure characterization of microcrystalline cellulose from pomelo fruitlets

Huan

et al. 2022

Food Processing Preservation

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“…The extracted cellulose after complete drying (0.24g) was taken in a 10 mL measuring cylinder and shaked slightly, then the volume of the sample was recorded (Gichuki et al, 2020;Prakongpan et al, 2002). The bulk density was determined as stated below Bulkdensity(g/mL) = amountofsample(g) volumeofsample(mL) ( ) Packeddensity(g/ml) = amountofsample(g) leastvolumeofsample(mL) 2…”

Section: Bulk Densitymentioning

confidence: 99%

“…Packed DensityIn a 5 mL graduated syringe 0.24g of dried cellulose was taken and the piston was pushed to apply pressure on the cellulose. The piston was pressed till the cellulose sample would not reduce further in volume(Gichuki et al, 2020;Prakongpan et al, 2002).The packed density was calculated as follows:…”

mentioning

confidence: 99%

Extraction, characterization, and fabrication of cellulose biopolymer sheets from Pistia stratiotes as a biodegradative coating material: an unique strategy for the conversion of invasive weeds into value-added products

et al. 2022

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Water lettuce (Pistia stratiotes) was used in the study to extract cellulose biopolymer. Cellulose extraction was carried out by alkali treatment followed by bleaching. Different methods for extraction of cellulose were carried out and the method which gave high yield was selected. Functional properties like bulk density, packed density, hydrated density, water retention capacity, oil retention capacity, emulsifying activity and setting volume of the extracted cellulose were studied. Quantitative analysis of cellulose was carried out by the anthrone method and the cellulose content was found to be 38.94 ± 0.10%. Preliminary con rmation of cellulose biopolymer was done using the study of functional groups using FT-IR analysis. Further characterization studies like SEM, XRD, DSC and TGA were done to understand the molecular architecture and purity of cellulose extracted. Fabrication of cellulose sheets were carried out using starch as plasticizer. Biodegradation studies were carried out in garden soil for four weeks and a high degradation rate of 78.22 ± 0.71% was observed in the fourth week of soil burial.

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“…Caranya: alat pH meter dikalibrasi menggunakan larutan dapar pH 7 dan pH 4. Sebanyak 2 g serbuk MCC ditambahkan dengan 100 mL akuades, diaduk selama 5 menit dan pH dari cairan supernatan diukur dengan pH meter [11].…”

Section: Karakteristik Selulosa Mikrokristalunclassified

Kajian Karakterisasi Selulosa Mikrokristalin Dari Kertas Bekas Dengan Variasi Konsentrasi Asam Klorida

Syahputra

Yuliasmi

Sumaiyah

2022

JIPP

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Kandungan selulosa pada kertas HVS mencapai 90% dari beratnya. Salah satu turunan selulosa adalah selulosa mikrokristalin (MCC), dimanfaatkan sebagai eksipien untuk pencetakan tablet. Pembuatan MCC menggunakan asam klorida (HCl). Tujuan penelitian ialah memberikan informasi terkait proses pembuatan MCC dari kertas bekas dengan pengaruh konsentrasi HCl untuk alternatif lain pembuatan MCC dengan hasil yang optimal dari penggunaan HCl untuk hidrolisis. Metode penelitian ini dimana MCC diperoleh dengan memanaskan kertas dengan campuran NaNO 2 dalam HNO 3 3,5% dan NaOH 2% dalam Na 2 SO 3 2%. Diputihkan dengan NaOCl 3,5% dalam air. Lalu panaskan dengan NaOH 17,5%, kemudian dihidrolisis dengan HCl konsentrasi 1N; 2,5N; 5N dan 10N. Selulosa mikrokristal ditentukan karakteristiknya. Hasil rendemen MCC terbanyak pada konsentrasi 1 N sebesar 80,82%. Hasil karakterisasi seluruh MCC kertas bekas konsentrasi HCl dan Avicel PH 102 diperoleh adalah uji organoleptik yaitu berwarna putih, tidak berbau, dan tidak berasa. Sifat fisikokimia meliputi pH memenuhi persyaratan; kelarutan dalam air semuanya memenuhi persyaratan. Selanjutnya bobot jenis nyata hanya 10N dan Avicel PH 102 yang memenuhi persyaratan, bobot jenis mampat tidak memenuhi persyaratan. Analisis FT-IR seluruh konsentrasi MCC dan Avicel PH 102 menunjukkan kemiripan spektrum. Kesimpulan didapatkan bahwa seluruh seluruh MCC kertas bekas konsentrasi HCl dan Avicel PH 102 memiliki karakteristik yang hampir sama, dan dapat digunakan sebagai alternatif selulosa mikrokristal.

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Characteristics of Microcrystalline Cellulose from Coir Fibers

Cited by 13 publications

References 28 publications

Physicochemical properties and structure characterization of microcrystalline cellulose from pomelo fruitlets

Physicochemical properties and structure characterization of microcrystalline cellulose from pomelo fruitlets

Extraction, characterization, and fabrication of cellulose biopolymer sheets from Pistia stratiotes as a biodegradative coating material: an unique strategy for the conversion of invasive weeds into value-added products

Kajian Karakterisasi Selulosa Mikrokristalin Dari Kertas Bekas Dengan Variasi Konsentrasi Asam Klorida

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