Skip to main content
main-content

Tipp

Weitere Artikel dieser Ausgabe durch Wischen aufrufen

12.09.2019 | Original Research | Ausgabe 15/2019

Cellulose 15/2019

Characteristic microcrystalline cellulose extracted by combined acid and enzyme hydrolysis of sweet sorghum

Zeitschrift:
Cellulose > Ausgabe 15/2019
Autoren:
Haiwei Ren, Jiali Shen, Jiawen Pei, Zhiye Wang, Zhangpu Peng, Shanfei Fu, Yi Zheng
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s10570-019-02712-6) contains supplementary material, which is available to authorized users.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Abstract

Microcrystalline cellulose (MCC) has been widely used in medicine, food and cosmetic industries. In this study, a combination method by using hydrochloric acid hydrolysis and fibrolytic enzyme purification was studied to extract MCC from sweet sorghum. The response surface methodology was employed to optimize the hydrochloric acid hydrolysis condition and therefore to maximize the MCC yield and cellulose content (purity). The optimal conditions for the hydrochloric acid hydrolysis were determined to be acid concentration of 7.0%, liquid–solid ratio of 17.3:1, time of 90 min, and temperature of 40 °C. Under such conditions, the yield and cellulose content of acid-extracted MCC were 81.8% and 93.2%, respectively. For enzyme refining of acid-extracted MCC, the optimum conditions were enzyme dosage of 4000 U/g substrate and time of 2 h, with which the yield, cellulose content and DP of the refined MCC were 80.03%, 99.80% and 287, respectively which were comparable to that of the commercial MCC (Lowa®PH101). Scanning electron microscopy, X-ray diffraction, Fourier transmission infrared spectroscopy, thermogravimetric analysis (TGA), and 13C NMR were used to characterize the refined MCC. The refined MCC demonstrated rod-shaped morphologies, and had a series of characteristic absorption peaks and chemical groups pertain to cellulose as similar to the Lowa®PH101. The X-ray diffraction pattern and 13C NMR spectrum reflected that the refined MCC had typical cellulose I structure. TGA indicated that the refined MCC had good thermal stability. This study showed sweet sorghum is a potential low-cost raw material for MCC production, and the combined acid-enzyme extraction method is promising to extract high purity MCC from cellulosic substrate.

Bitte loggen Sie sich ein, um Zugang zu diesem Inhalt zu erhalten

Sie möchten Zugang zu diesem Inhalt erhalten? Dann informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 50.000 Bücher
  • über 380 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Umwelt
  • Maschinenbau + Werkstoffe




Testen Sie jetzt 30 Tage kostenlos.

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 69.000 Bücher
  • über 500 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Umwelt
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Testen Sie jetzt 30 Tage kostenlos.

Zusatzmaterial
Nur für berechtigte Nutzer zugänglich
Literatur
Über diesen Artikel

Weitere Artikel der Ausgabe 15/2019

Cellulose 15/2019 Zur Ausgabe