Impact of Mechanical Harvesting and Optical Berry Sorting on Grape and Wine Composition

Hendrickson, David A.; Lerno, Larry; Hjelmeland, Anna K.; Ebeler, Susan E.; Heymann, Hildegarde; Hopfer, Helene; Block, Karen; Brenneman, Charles; Oberholster, Anita

doi:10.5344/ajev.2016.14132

Cited by 29 publications

(32 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Descriptors and the standards preparation are listed in Table 1. Taste, mouthfeel, and aroma standards were prepared following the ‘Wine Aroma Wheel’ 21 and additional bibliographic references 22,23 …”

Section: Methodsmentioning

confidence: 99%

Effect of leaf‐to‐fruit ratios on phenolic and sensory profiles of Malbec wines from single high‐wire‐trellised vineyards

Ahumada¹,

Catania

Fanzone

et al. 2020

J Sci Food Agric

View full text Add to dashboard Cite

BACKGROUND The single high‐wire system is a free canopy trellis system suitable for warm to hot climates. In a global warming scenario, it arouses as a technological solution since it prevents berry overheating and sunburn. Canopy management practices manipulate leaf‐to‐fruit ratios, affecting berry and wine composition. We aimed to evaluate the phenolic and sensory profiles of Malbec wines from single high‐wire trellised vineyards in a hot region in Mendoza (Argentina) and to assess the effect of varying leaf‐to‐fruit ratios on these attributes. We manipulated leaf‐to‐fruit ratios by varying shoot trimming (experiment 1: 0.45 m, 0.80 m, and untrimmed) and winter pruning severity (experiment 2: 16, 24, 32, and >32 countable buds per meter). We characterized wine attributes by a descriptive analysis, color by the CIELAB space, and global phenolics compounds and anthocyanins by high‐performance liquid chromatography with diode array detection. RESULTS We found that wines where shoots were trimmed to 0.80 m or left untrimmed had similar and greater intensity of color, violet hue, astringency, and alcohol and a richer aroma profile than wines where shoots were trimmed to 0.45 m. Meanwhile, wines from 16 and >32 buds/m treatments (the latter simulating a box pruning) were similar to each other and had higher color intensity, violet hue, acidity, alcohol, and astringency and a more complex aroma profile than the other pruning treatments. CONCLUSIONS The best quality wines were achieved by leaving 16 or >32 buds/m and by trimming shoots to 0.80 m or leaving them untrimmed. The modulation of cultural practices in sprawling canopies offers the potential to produce wines with different styles in hot regions. © 2020 Society of Chemical Industry

show abstract

Section: Methodsmentioning

confidence: 99%

Effect of leaf‐to‐fruit ratios on phenolic and sensory profiles of Malbec wines from single high‐wire‐trellised vineyards

Ahumada¹,

Catania

Fanzone

et al. 2020

J Sci Food Agric

View full text Add to dashboard Cite

show abstract

“…The latter difference is potentially due to more intact berries, as whole-berry fermentations were employed. However, with only two significant differences among 18 aroma, taste, and mouthfeel attributes tested, it was concluded that all treatments led to Pinot noir wines of similar character 8 .…”

Section: Key Themesmentioning

confidence: 92%

“…Another study using both red and white varieties (Petite Sirah, French Colombard, and Chenin blanc) found that subjects had no preference between wines made from grapes harvested by the two methods 7 . In a more recent study, the impact of mechanical harvesting using both standard bowrod and a new generation mechanical harvester with a Selectiv' Process on-board (a sorter removing mostly MOG) was studied using Pinot noir grapes 8 . Although there were phenolic and aroma compound differences among the different harvest treatments, descriptive sensory analysis found only small differences in the final wines.…”

Section: Key Themesmentioning

confidence: 99%

“…However, the wines had no significant differences in the remaining sensory attributes and the authors concluded that the wines were similar in character 34 . A more recent study investigated the synergistic effect of harvest method (hand or mechanical) with optical berry sorting on Pinot noir grape and wine composition 8 . Most differences in Pinot noir wine composition that arose from harvest method were diminished or eliminated by optical sorting.…”

Section: Key Themesmentioning

confidence: 99%

See 1 more Smart Citation

Review of the Impact of Mechanical Harvesting and Optical Berry Sorting on Grape and Wine Composition

Hendrickson

Oberholster

2016

Catalyst: Discovery into Practice

Self Cite

View full text Add to dashboard Cite

Aim: The need for mechanical harvesting is increasing, but there have been few new investigations into the potential impact of new-generation harvesters on fruit quality. It is thus timely to review what we know about the impact of mechanical harvesting and identify the gaps in knowledge that should be addressed. Furthermore, new technologies such as optical berry sorting may have the potential to negate the impact of mechanical harvesting on fruit quality.

show abstract

“…Analysis of volatile aroma compounds in the wines was performed only in the 2016 season following the methodology described by Hendrickson et al . For each wine fermentation, bottle duplicates were analyzed in triplicate within 1 month of sensorial descriptive analysis.…”

Section: Methodsmentioning

confidence: 99%

The impact of grapevine red blotch disease on Vitis vinifera L. Chardonnay grape and wine composition and sensory attributes over three seasons

et al. 2019

Self Cite

View full text Add to dashboard Cite

BACKGROUND: Grapevine red blotch virus (GRBV) is a recently discovered DNA virus, which was demonstrated to be responsible for grapevine red blotch disease (GRBD). Its presence has been confirmed in the United States, Canada, Mexico, and South Korea in white and red Vitis vinifera cultivars, including Chardonnay. It has been shown that the three-cornered alfalfa treehopper (Spissistilus festinus) was able to both acquire the GRBV from a grapevine infected and transmit it to healthy grapevines in glasshouse conditions. Studies found that GRBD impacts fruit price, grapevine physiology, and grape berry composition and metabolism in red cultivars. This study evaluated the impact of GRBD on V. vinifera L. Chardonnay grape and wine composition and sensory properties from one vineyard during the 2014, 2015 and 2016 seasons. RESULTS: Grapes from symptomatic red blotch diseased grapevines were lower in total soluble solids, flavan-3-ol, and total phenolic content, and higher in flavonol content when compared to grapes from healthy grapevines. Wines made with grapes from symptomatic grapevines resulted mostly in lower ethanol content and higher pH when compared to wines made from healthy grapevines. Analysis of volatile compounds and descriptive analysis demonstrated that GRBD can impact wine style by altering aroma, flavor, and mouthfeel attributes.CONCLUSIONS: The impacts of GRBD on grape composition directly influenced wine chemistry. The decreased ethanol content impacted not only the levels of volatile compounds but the sensory perception during descriptive analysis. The extent of GRBD impact on the grape composition and wine composition and sensory attributes varied between seasons.

show abstract

Impact of Mechanical Harvesting and Optical Berry Sorting on Grape and Wine Composition

Cited by 29 publications

References 24 publications

Effect of leaf‐to‐fruit ratios on phenolic and sensory profiles of Malbec wines from single high‐wire‐trellised vineyards

Effect of leaf‐to‐fruit ratios on phenolic and sensory profiles of Malbec wines from single high‐wire‐trellised vineyards

Review of the Impact of Mechanical Harvesting and Optical Berry Sorting on Grape and Wine Composition

The impact of grapevine red blotch disease on Vitis vinifera L. Chardonnay grape and wine composition and sensory attributes over three seasons

Contact Info

Product

Resources

About