An opportunity for acerola pulp (Malpighia emarginata DC) valorization evaluating its performance during the block cryoconcentration by physicochemical, bioactive compounds, HPLC–ESI-MS/MS, and multi-elemental profile analysis

• Published in: Food research international Vol. 176; p. 113793
• Main Authors: Marafon, Karine, Pereira-Coelho, Marina, da Silva Haas, Isabel Cristina, da Silva Monteiro Wanderley, Bruna Rafaela, de Gois, Jefferson Santos, Vitali, Luciano, Luna, Aderval S., Canella, Maria Helena Machado, Hernández, Eduard, de Mello Castanho Amboni, Renata Dias, Prudencio, Elane Schwinden
• Format: Journal Article
• Language: English
• Published: Canada Elsevier Ltd 01.01.2024
• Subjects: Concentration; Functional characterization; Novel acerola product; Physical chemistry; Concentration; Functional characterization; Physical chemistry; Novel acerola product
• ISSN: 0963-9969; 1873-7145
• DOI: 10.1016/j.foodres.2023.113793

[Display omitted] •Acerola pulp showed an excelent performance in the block cryoconcentration.•The acerola pulp cryoconcentration increase the total soluble solids content.•Red color of concentrates increased, showing color differences to the naked eye.•Phenolics and antioxidant activity contents increase for concentrates 2 and 3.•Concentrate 3 showed increase of Fe, Mg, P, Na, Mn, K, Sr, S, Ca, Cu elements, The present study evaluated the effect of cryoconcentration of pulp blocks of acerola (Malpighia emarginata DC). The study evaluated cryoconcentration in three stages. The cryoconcentrated samples, the ice fractions, and the initial pulp were evaluated for physicochemical composition, bioactive composition, and multielement profile. The cryoconcentrated sample obtained in the third stage of cryoconcentration showed the best results for the concentration factor, process efficiency, total soluble solids content, red color intensity, and increasing of the macro and micronutrients: Cu, Ca, S, Sr, K, Mn, Na, P, Mg, Fe. All stages presented good performance in the total soluble solids content, increase in the titratable acidity of the concentrates, and progressive increase in the intensity of the red color. Generally, higher levels of total phenolic and antioxidant activity were found for the 2nd and 3rd concentrates. The phenolic activity showed an increase of 166.90% in the 3rd stage concentrate compared to fresh pulp, and the antioxidant activity was 112.10% by the ABTS method and 131.60% by the DPPH method, both in the 3rd stage concentrate. The major individual polyphenols were Ferulic acid, Protocatechuic acid, and Taxifolin, with significant increases in the concentration of the compounds in the 2nd and 3rd stage concentrates. In addition, the contents of potentially toxic metals were below detection limits. During the cryoconcentration process, there was a decrease in the values ​​of vitamin C content, moisture content, density, and elements Cu, Sr, and Zn.