Kiraz ve Kayısı Ağacı Reçinelerinden Elde Edilen Yenilebilir Filmlerin Çilek (Fragaria ananassa) ve Yenidünya (Eriobotrya japonica) Meyvelerinin Kaplanmasında Kullanımları

Abstract

The gum exudates leaking from cherry and apricot trees were used as edible coating material in this study. Some chemical properties of these gums were analysed whether they are proper as edible coating or not. Carbon, hydrogen, nitrogen and sulfur percentages were determined by elemental analysis. Both two gums were found rich in phenolic content and their antioxidant capacities were detected high as a result of the analysis. The behaviours against the heat and losses of weight of the films extracted from gums were determined by thermal analysis. According to these analysis, films were found heat tolerant up to 400°C. It was observed that the surface images of the films taken by SEM were homogeneous and a regular structure. Afterwards, strawberry and loquat fruits were coated with film solutions extracted from gums. The coated/uncoated fruits stored in refrigerator at 4±1°C were compared in respect of shelf life, organoleptic and microbiologic properties. It was seen that the films extended shelf life of the coated fruits. The total bacteria, yeast-mould and coliform bacteria levels of the uncoated samples were highest level at the end of the storage. Also, coatings affected positively organoleptic properties of the fruits. According to the sensory analysis test, the coated fruits had higher points from the uncoated fruits. The cherry and apricot tree gums are suitable materials to use as edible coating.

Influence of genetic variability on the quality of strawberry cultivars: sensorial, physical-chemical and nutritional characterization

“…Although they have a favourable chemical, nutritional and sensorial profile, strawberries can suffer interference from intrinsic and extrinsic factors that alter its characteristics. Evidence has already suggested that the concentration of nutrients and compounds in strawberries can increase and/or decrease according to the cultivation system (Abountiolas et al, 2018), stage of maturation (Boonyakiat, Chuamuangphan, Maniwara, & Seehanam, 2016), climate conditions (Akhtar& Rab, 2015), preservation methods (Ergin, Yaman, & Dilek, 2018) and storage methods (Maksimović et al, 2015). Factors characteristic of the cultivar, such as the genetic profile, may also influence strawberry composition, as already demonstrated in the literature.…”

The effect of resin coating on the quality characteristics of chicken eggs during storage

“…Wood resin is a natural adhesive substance secreted to cover mechanical wounds that occur in tree trunks and branches (Jones & Smith, 1949;Marques & Xavier-Filho, 1991;Simas-Tosin et al, 2010). In addition, trees resins occur naturally to curing wounds caused by microbial infection, insect attacks, or water stress (Simas-Tosin et al, 2010;Liu et al, 2016;Ergin et al, 2018).…”

Prunus armeniaca gum exudates: An overview on purification, structure, physicochemical properties, and applications

“…Furthermore, the coated samples had better organoleptic properties than the controls. Overall, Ergin et al (2018) concluded that cherry gum and PAGE are suitable to coat fruits.…”

“…EC 50 , the concentration required for 50% inhibition, was used to estimate the antiradical activity of PAGE by Ergin et al. (2018). A smaller value of this parameter shows a more antiradical activity.…”

“…Various techniques are employed to determine antioxidant capacity of gums, and among them, DPPH scavenging assay is commonly used for this purpose. EC 50 , the concentration required for 50% inhibition, was used to estimate the antiradical activity of PAGE byErgin et al (2018). A smaller value of this parameter shows a more antiradical activity.…”