| Title |
Thermal and structural characteristics of date-pits as digested by Trichoderma reesei |
| ID_Doc |
18254 |
| Authors |
Al-Saidi, SMK; Al-Kharousi, ZSN; Rahman, MS; Sivakumar, N; Suleria, HAR; Ashokkumar, M; Hussain, M; Al-Habsi, N |
| Title |
Thermal and structural characteristics of date-pits as digested by Trichoderma reesei |
| Year |
2024 |
| Published |
Heliyon, 10.0, 6 |
| DOI |
10.1016/j.heliyon.2024.e28313 |
| Abstract |
The objective of this study was to develop functional date-pits by mold digestion for the potential use in food products. Whole date-pits (WDP) and defatted date-pits (DDP) were digested by mold Trichoderma reesei at 20 degrees C. T. reesei consumed date-pits as nutrients for their growth, and DDP showed higher growth of molds as compared to the WDP. The mold digested WDP and DDP samples showed an increased water solubility and hygroscopicity as compared to the samples prepared by autoclaved. This indicated that the mold digestion transformed date-pits to hydrophilic characteristics. Thermal analysis indicated a structural change at -3.2 degrees C for the untreated WDP and it was followed by a glass transition shift (i.e. onset: 138 degrees C and a specific heat change: 295 J/kg oC), and an endothermic peak at 196 degrees C with enthalpy of 68 J/g for the solids meltingdecomposition. Similar characteristics were also observed for treated samples with the two glass transitions. The total specific heat changes for WDP, autoclaved-WDP, and digested-WDP were observed as 295, 367, and 328 J/kg oC, respectively. The total specific heat changes for DDP, autoclaved-DDP, and digested-DDP were observed as 778, 1329, and 1877 J/kg oC, respectively. This indicated that mold digestion transformed more amorphous fraction in the DDP. The energy absorption intensities of the Fourier Transform Infrared (FTIR) spectra for the selected functional groups decreased by the mold digestion. |
| Author Keywords |
Amorphous; Crystallinity; Glass transition; Hygroscopicity; Melting; Proton mobility; Trichoderma reesei |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001215956300001 |
| WoS Category |
Multidisciplinary Sciences |
| Research Area |
Science & Technology - Other Topics |
| PDF |
http://www.cell.com/article/S2405844024043445/pdf
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