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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/12789

Title: Estimated daily intake and risk of prevailing acrylamide content of alkalized roasted cocoa beans
Authors: Ofosu, Isaac W.
Ankar-Brewoo, Gloria M.
Lutterodt, Herman E.
Benefo, Edmund O.
Menyah, Celestina A.
Keywords: Alkalized cocoa
Probable carcinogen
Issue Date: Sep-2019
Publisher: ElsevierB.V.
Abstract: The consistency of the brown color, flavor and dispersability of cocoa solids is the goal of a successful Dutching process of cocoa masse. However, acrylamide, a known probable car- cinogen which is one of the by-products of browning reactions, is linked to the strength of alkalis used in the Dutching process. This study used Response Surface D-optimal, 20 experimental runs to determine acrylamide content of beans after using treatment fac- tors; temperature (110–160 °C), time (20–50 min) and K 2 CO 3 (10–70% w/v). Subsequently, the alkalized cocoa masses were treated to obtain extracts containing acrylamide using QuEChERS method. The concentrations of the acrylamide were determined using HPLC af- ter which the data was processed by fitting a cubic process order followed by diagnostics to remove outliers. The results yielded optimized process conditions of treatment to yield low acrylamide content, which was later validated to be 7.7 ×10 −2 mg/g, at alkali concen- tration of 29.17% and roasting temperature - time system of 110 °C and 20 min respec- tively. Though the validated acrylamide content was relatively lower than what has been reported in some European markets, it was found to be still high relative to other markets. This suggest that the application of K 2 CO 3 could hold promise of lowering acrylamide con- centrations. However, after exposure studies, the validated acrylamide yielded a probable risk of ‘4 in 10 0 0’ adults and ‘2 in 100’ young children consumers of chocolate products, which were highly unacceptable relative to the deminimis (‘1 in 1,0 0 0,0 0 0’). Thus, based on the deminimis risk, further control measures must be sought to produce safer alkalized cocoa masse.
Description: An article published by Elsevier B.V. and also available at https://doi.org/10.1016/j.sciaf.2019.e00176
URI: http://hdl.handle.net/123456789/12789
Appears in Collections:College of Science

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