Co‐Joined Starch Modification and β‐Carotene Dispersion In Situ by Planetary Ball Milling

GONZÁLEZ, LUCIANA CARLA; LOUBES, MARIA ANA; SANTAGAPITA, PATRICIO ROMÁN; TOLABA, MARCELA PATRICIA

STARCH/STARKE

WILEY-V C H VERLAG GMBH

Año: 2020

0038-9056

The objective is to evaluate An innovative dispersion method (IM), planetary ball milling (PBM) is evaluated for its potential use in obtaining starch modifications together with in situ 𝜷-carotene dispersion. Native (N) and ball milled (BM) rice starches are first evaluated as encapsulating matrices of 𝜷-carotene, by means of traditional dispersion method (TM) using a rotor?stator device. Ball milled starch with gelatin (BM+G) preserves 𝜷-carotene structure and produces the highest encapsulated 𝜷-carotene content (0.154 mg g−1), being four times the N starch content (0.035 mg g−1). By IM, 𝜷-carotene structure is partially (69%) preserved by using the BM+Gmatrix. Encapsulated 𝜷-carotene contents >86% (equivalent to 0.50 mg g−1 starch) and encapsulated/surface ratio >6.7 are achieved, obtaining at least 3.0- and 16.3-fold increments compared to TM, respectively. Results from IM reveal the potential of PBM to reach a high degree of 𝜷-carotene dispersion in a physically modified starch improving the encapsulation performance with respect to TM.