  The preparation of biodegradable nanomaterials by blending starch
nanocrystals with various polymer matrices are the most active research. This
work reports aspect related to nano-sized particles of jackfruit seed. This
approach is simple, faster, eco-friendly, cost effective and suitable for large
scale production. X-Ray Diffraction studies analyze particles size, morphology,
type of starch and degree of crystallinity. The particle size is found to be
12nm, specific surface area is 625 m2g-1, contains A-type starch and 32% degree
of crystallinity. A morphology index (MI) is developed from FWHM of XRD data to
understand interrelationship of particle size and specific surface area. MI
range is from 0.50 to 0.74. It is correlated with the particle size and
specific surface area. It is observed that MI has direct relationship with
particle size and an inverse relationship with specific surface area.
