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Effects of Maltodextrin and Silicon Dioxide Added as Anticaking Agents on the Properties of Instant Date Palm (Phoenix dactylifera L.) Powder Using Spray Drying

Nutthamon Nortuy 1, Kanyarat Suthapakti 1, and Niramon Utama-ang 1,2
1. Division of Product Development Technology, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai, Thailand
2. Lanna Rice Research Center, Chiang Mai University, Chiang Mai, Thailand
Abstract—Date palm (Phoenix dactylifera L.) is a highly nutritional fruit containing many health benefiting nutrients. The date fruit at Tarm (fully ripened) ripening stage is rejected by consumers as a result of its dark brown skin and bad appearance. Therefore, it is commonly processed into various products. This study aims improve the properties of instant date palm powder (IDPP) produced by spray drying by optimizing the amounts of the anticaking agents Maltodextrin (MD) and Silicon dioxide (SiO2). MD (20-40 %w/v of date solution) was used in powder preparation then mixed with SiO2 (0.5-1.5 %w/w of powder) and analyzed for its physicochemical properties and sensory acceptance. The results show that MD and SiO2 significantly affected on properties of IDPP. Increasing the amount of MD and SiO2 increased the yield recovery, tapped density and sensory acceptance score, while decreasing moisture content, bulk density, hygroscopicity (HG) and reducing sugar (RS). The optimized amounts of MD and SiO2 in IDP production were 35.82 %w/v of date solution and 0.72 %w/w of powder respectively. These amounts provided the highest yield recovery (31.45±0.98%), tapped density (649.67±6.98kg/m3) and sensory acceptance score (powder distribution was 7.6±0.6 and overall liking was 7.3±1.0), as well as the lowest moisture content (4.25±0.12%), bulk density (478.34±10.56kg/m3) and HG (17.79±0.45%). 

Index Terms—date palm, Phoenix dactylifera L., spray drying, anticaking agents, Maltodextrin, Silicon dioxide

Cite: Nutthamon Nortuy, Kanyarat Suthapakti, and Niramon Utama-ang, "Effects of Maltodextrin and Silicon Dioxide Added as Anticaking Agents on the Properties of Instant Date Palm (Phoenix dactylifera L.) Powder Using Spray Drying," Journal of Advanced Agricultural Technologies, Vol. 5, No. 2, pp. 86-92, June 2018. Doi: 10.18178/joaat.5.2.86-92
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