Physical, biochemical, and sensory properties of strawberries grown in high-altitude tropical climate

Abstract

New cultivars generated each year by international breeding programs enter the Brazilian market. These cultivars need to be tested for their adaptation to the climate in each environment due to the great variety of climates that exist in the country. Strawberry is a highly appreciated fruit due to its biochemical and sensory characteristics and is considered the most important berry. The objective of this study was to determine the physical, biochemical, and sensory properties by performing a sensory evaluation of strawberry fruits, commercially cultivated in the South Minas Gerais region, which is characterized by high-altitude tropical climates. Data were analyzed, and statistical parameters were generated using the principal component analysis (PCA), heat maps, and dendrograms to determine the genetic profile of each cultivar, as well as their relationship. The treatments and analyzed variables were divided into four groups based on the UPGMA method. Considering breeding programs aiming to identify and select strawberries genotypes with better biochemical properties, group III (‘Albion’ and ‘Oso Grande’) was selected due to its high DPPH antioxidant activity, intermediate anthocyanin content, and total phenolic compounds. The Albion cultivar showed excellent biochemical attributes, especially with regard to the levels of glucose, fructose, phenolic compounds, and antioxidant capacity (FRAP and DPPH). Based on the hierarchical grouping and sensorial quality of fruits, the Camarosa cultivar had the lowest scores for most of the sensory attributes evaluated. Minas-C and Oso Grande cultivars presented the highest scores for all the evaluated attributes, including overall acceptance, aroma, color, and purchase intention.

Breeding Short-Day Strawberry Genotypes for Cultivation in Tropical and Subtropical Regions

“…Principal component analysis (PCA) allows us to extract important information from a data set containing multiple inter-correlated quantitative variables. This is possible since it reshapes data along principal component axes, reducing their dimensionality in an interpretable way [1,36]. The PCA showed that most of the variance (76.53%) was explained by the two first components.…”

Ensaio físico-químico de diferentes cultivares de morango cultivadas sob sistema convencional na região centro-oeste do Paraná

“…A quantidade de açúcares nos frutos consiste principalmente de açúcares, e varia com a espécie, cultivar, estágio de maturação e clima (PINHEIRO et al, 2021). O grau de doçura da fruta é prejudicado por pressões ambientais que reduzem a sacarose e o Brazilian Journal of Development, Curitiba, v.9, n.5, p. 14839-14846, may., 2023 conteúdo volátil total (COZZOLINO et al, 2021).…”

“…Porém é visto de que ocorrem diferenças nas análises químicas em se tratando de diferentes cultivares. Os perfis entre as variedades comerciais de morango são complexos e em sua maioria são distintos (PINHEIRO et al, 2021). Diante disto, o presente estudo teve por objetivo analisar as características físico-químicas de seis diferentes cultivares de morangueiro, cultivados sob as mesmas condições, quantificando à diferença entre teores de pH, sólidos solúveis, acidez total titulável bem relação sólidos solúveis totais/acidez total titulável.…”