Lactic preservation of cherry tomato cultivated under irrigation with saline waters/Conservacao lactica de tomate tipo cereja cultivado sob irrigacao com aguas salinas

• Published in: Revista brasileira de engenharia agrícola e ambiental Vol. 26; no. 9; p. 662
• Main Authors: Roque, Iara A, Soares, Lauriane A. dos A, Lima, Geovani S. de, Oliveira, Sabrina G. de, Silva, Luderlandio de A, Araujo, Alfredina dos S, Gomes, Josivanda P, Almeida, Alan K.C. de
• Format: Journal Article
• Language: English
• Published: ATECEL--Associacao Tecnico Cientifica Ernesto Luiz de Oliveira Junior 01.09.2022
• Subjects: Brasil
• ISSN: 1415-4366; 1807-1929
• DOI: 10.1590/1807-1929/agriambi.v26n9p662-669

HIGHLIGHTS: Lactic fermentation promotes higher titratable acidity and soluble solids of cherry tomato fruits under salt stress. Vitamin C from tomato fruits was better preserved under brine of 100 g [L.sup.-1] of NaCI and 100 g [L.sup.-1] of CaC[l.sub.2] The moisture content of cherry tomato fruits is below the standard in all lactic conservation formulations. The objective of this study was to evaluate the chemical composition of cherry tomato fruits produced under irrigation with saline water and subjected to lactic preservation. The design used was completely randomized, in a 6 * 5 factorial scheme, referring to the preservation by lactic fermentation with six mixtures of salts (100 g [L.sup.-1] NaCl, 100 g [L.sup.-1 CaC[l.sub.2] 100 g [L.sup.-1 KCl, 50 g [L.sup.-1 NaCl + 50 g [L.sup.-1 CaC[l.sub.2], 50 g [L.sup.-1 CaC[l.sub.2] + 50 g [L.sup.-1 KCl, and 50 g [L.sup.-1 NaCl + 50 g [L.sup.-1] KCl) and five levels of electrical conductivity of water (0.3, 1.3, 2.3, 3.3, and 4.3 dS [m.sup.-1]), with three replicates. Lactic fermentation brines promoted higher titratabie acidity and soluble solids of cherry tomato fruits under saline water irrigation. Irrigation using water with electrical conductivity of 2.3 dS [m.sup.-1] promoted higher soluble solids/titratabie acidity ratio in cherry tomato fruits preserved in the formulations with 50 g [L.sup.-1] NaCl + 50 g [L.sup.-1] KCl and 50 g [L.sup.-1] CaC[l.sub.2] + 50g [L.sup.-1] KCl. The highest moisture contents were found in fruits preserved with 100 g [L.sup.-1] CaC[l.sub.2] and 50 g [L.sup.-1] NaCl + 50 g [L.sup.-1] CaC[l.sub.2]. Brine formulations for lactic preservation containing 100 g [L.sup.-1] NaCl and 100 g [L.sup.-1] CaC[l.sub.2] promoted higher contents of vitamin C and flavonoids in cherry tomato fruits, regardless of the salinity of irrigation water. Key words: Solanum lycopersicum var. cerasiforme, salt stress, post-harvest Objetivou-se com este trabalho, avaliar a composicao quimica dos frutos de tomate cereja produzidos sob irrigacao com aguas salinas e submetidos a conservacao lactica. O delineamento utilizado foi inteiramente casualizado, em esquema fatorial 6 * 5, referente a conservacao por fermentacao lactica com seis misturas de sais para conserva (100 g [L.sup.-1] NaCl, 100 g [L.sup.-1] CaC[l.sub.2], 100 g [L.sup.-1] KCl, 50 g [L.sup.-1] NaCl + 50 g [L.sup.-1] CaC[l.sub.2], 50 g [L.sup.-1] CaC[l.sub.2] + 50 g [L.sup.-1] KCl e 50 g [L.sup.-1] NaCl + 50 g [L.sup.-1] KCl) e cinco niveis de condutividades eletricas da agua (0,3; 1,3; 2,3; 3,3 e 4,3 dS[m.sup.-1]) e tres repeticoes. As salmouras de fermentacao latica proporcionaram maior acidez titulavel e solidos soluveis nos frutos de tomate cereja sob salinidade da agua de irrigacao. A irrigacao com agua de condutividade eletrica de 2,3 dS [m.sup.-1] promoveu maiores teores de solidos soluveis/acidez titulavel em frutos de tomate cereja preservados nas formulacoes com 50 g [L.sup.-1] NaCl + 50 g [L.sup.-1] KCl e 50 g [L.sup.-1] CaC[l.sub.2] + 50 g [L.sup.-1] KCl. Os maiores teores de umidade foram encontrados nos frutos preservados com 100 g [L.sup.-1] CaC[l.sub.2] e 50 g [L.sup.-1] NaCl + 50 g [L.sup.-1] CaC[l.sub.2]. As formulacoes de salmoura para conservacao lactica contendo 100 g [L.sup.-1] de NaCl e 100 g [L.sup.-1] de CaC[l.sub.2] promoveram maiores teores de vitamina C e flavonoides em frutos de tomate cereja, independentemente da salinidade da agua de irrigacao. Palavras-chave: Solanum lycopersicum var. cerasiforme, estresse salino, pos-colheita