کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6407352 1628836 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of cold storage and shelf life on physiological and quality traits of early ripening pear cultivars
ترجمه فارسی عنوان
اثر ذخیره سازی سرد و مدت زمان نگهداری بر صفات فیزیولوژیکی و کیفی ارقام زودرس هنگام رسیدن گلابی
کلمات کلیدی
گلابی تابستان، ذخیره سازی سرد عمر مفید تجزیه و تحلیل احساسی، تجزیه و تحلیل مولفه اصلی،
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش باغداری
چکیده انگلیسی


- Quality and sensorial traits were evaluated on six pear cultivars during cold storage.
- The study highlighted significant differences in cultivar physico-chemical and sensory traits, especially towards the end of cold storage period.
- PCA plots showed different pear cultivar distribution between harvest and cold storage period.

Similar to other species, pear storage is cultivar-specific such that many early ripening cultivars often have limited storability. The effect of cold storage (2 °C) on the qualitative traits of six summer pears (Pyrus communis L., namely cvs. “Carmen”, “Coscia”, “Etrusca”, “Precoce di Fiorano”, “Tosca” and “Turandot”) was investigated. The physical-chemical (weight loss, firmness, soluble solid content and titratable acidity) and sensory (fruit juiciness, sweetness, sourness, aroma, graininess and hardness) evaluations were performed after four, eight, 12 and 16 weeks at 2 °C and after a five-day period at 20 °C (shelf life). The maximum weight loss was recorded in “Precoce di Fiorano”, ranging from 3.6% to 6.0% after eight and 12 weeks of cold storage, respectively. Additionally, the titratable acidity (TA) was affected by the cold storage, and we observed some cultivar-specific changes. “Carmen” and “Tosca” showed a similar percentage decrease in the TA values compared to all other tested cultivars. A multivariate statistical approach, including a principal component analysis, reduced all datasets into three independent components, which accounted for 78.83% of the total variability and provided a global view of the early ripening pear cultivars in response to cold storage. “Precoce di Fiorano” showed rapid fruit decay as the cold storage period progressed; this cultivar preserved its physical-chemical and sensory traits only for a short cold storage period (i.e., four weeks), whereas “Etrusca”, “Carmen” and “Turandot” can be refrigerated for eight weeks with acceptable changes in their organoleptic characteristics. “Coscia” and “Tosca” showed the longest storability (i.e., 16 weeks).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scientia Horticulturae - Volume 162, 23 October 2013, Pages 341-350
نویسندگان
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