Hydrothermal Pretreatment of Date Palm (Phoenix dactylifera L.) Leaflets and Rachis to Enhance Enzymatic Digestibility and Bioethanol Potential

Table 2

Crystallinity analysis of leaflets and rachis before and after hydrothermal pretreatment according to Rietveld method.

	Samples
	Leaflets	Leaflets_180	Leaflets_190	Leaflets_200	Leaflets_210
Crystallinity (%)	29.3	43.2	42.1	38.4	39.1
(%)^a	3.80	3.57	3.56	3.73	3.78
	Rachis	Rachis_180	Rachis_190	Rachis_200	Rachis_210
Crystallinity (%)	39.5	47.3	46.2	45.4	40.4
(%)^a	3.51	3.69	3.55	3.68	3.93

^aThe weighted profile residual is given as , where and are the observed and calculated intensity, respectively, and is the weighting function, 1/.