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Advancing Washington State Cider Apple Production Through a Branch to Bottle Assessment of Mechanized Harvest and a Comparison of Regional Juice Quality
Başlık:
Advancing Washington State Cider Apple Production Through a Branch to Bottle Assessment of Mechanized Harvest and a Comparison of Regional Juice Quality
Yazar:
Alexander, Travis Robert, author.
ISBN:
9780438104839
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (130 pages)
Genel Not:
Source: Dissertation Abstracts International, Volume: 79-11(E), Section: B.
Advisors: Carol A. Miles Committee members: Tom Collins; Desmond Layne; Carolyn Ross.
Özet:
Washington State has the potential to be the cider apple (Malus domestica Borkh.) capital of the nation. Selection of a proper site for cider apple cultivation and acquisition of a stable and affordable harvest method are two factors that could determine long term success of the cider industry in Washington State. One study was carried out across Washington State to compare regional juice quality, and three studies were carried out from Mount Vernon, WA to evaluate over-the-row machine-harvest of cider apples as an alternative to hand-harvest. The first study compared five juice quality characteristics (soluble solids concentration, specific gravity, pH, titratable acidity, and tannin content) of four cider apple cultivars (Brown Snout, Dabinett, Kingston Black, and Yarlington Mill) grown in northwest Washington versus central Washington. Results from the study demonstrated variations in juice quality characteristics between cultivars and within a cultivar from year-to-year, but for the four cultivars included in this study variations did not occur due to production region in Washington. The second study assessed 'Brown Snout' cider apple that had been machine-harvested with an over-the-row shake-and-catch small fruit harvester to hand-harvested 'Brown Snout' in terms of yield, fruit damage, and five juice quality characteristics. Results from the study demonstrated that with some engineering modifications (16% gap) over-the-row machine-harvesting of cider apples could serve as a suitable replacement to hand-harvest provided fruit are processed into juice or cold-stored immediately. The third study evaluated the sensory perception (color, aroma, flavor, mouthfeel, taste, and aftertaste) of ciders produced from over-the-row machine-harvested 'Brown Snout' versus hand-harvested 'Brown Snout', using a trained panel and electronic tongue (e-tongue). The trained panelists and e-tongue perceived differences due to harvest method, including color, astringency and mouthfeel. A consumer tasting panel should be conducted next to provide for an indication of market response to the impact of harvest method. The fourth study evaluated the polyphenol profiles of juice and cider derived from machine- and hand-harvested 'Brown Snout, utilizing multiple analytical approaches. The harvest costs savings provided by over-the-row machine-harvesting of 'Brown Snout' come at the cost of a lower absolute tannin content in the final product.
Notlar:
School code: 0251
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
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XX(689885.1) | 689885-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
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