Impact of temperature, length of storage and postharvest disease on sucrose catabolism in sugarbeet

Klotz, Karen L.; Finger, Fernando Luíz

doi:10.1016/j.postharvbio.2004.05.016

Cited by 50 publications

(24 citation statements)

References 22 publications

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“…The supernatant did not display a-glucosidase activity (assayed for p-nitrophenyla-D-glucopyranoside). Our results are consistent with that of Klotz and Finger (2004) and Gonzalez et al (2005), who also reported that the activity of sugar beet root invertases was very low. This benefits sucrose manufacture because its losses are reduced during extraction.…”

Section: Resultssupporting

confidence: 93%

See 1 more Smart Citation

The effect of high electric field pulses on activity of sugar beet o-diphenol oxidase and yeast invertase

Wawro

Kalinowska

Gruska

2009

Journal of Food Engineering

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Section: Resultssupporting

confidence: 93%

“…Invertase-catalyzed sucrose hydrolysis to glucose and fructose decreases the yield of sucrose recovery from sugar beets. Cells of sugar beet roots contain alkaline and acid invertases (Klotz and Finger, 2004). The former enzymes occur in the cytoplasm and are optimally active at pH 7.0-8.0.…”

Section: Introductionmentioning

confidence: 99%

The effect of high electric field pulses on activity of sugar beet o-diphenol oxidase and yeast invertase

Wawro

Kalinowska

Gruska

2009

Journal of Food Engineering

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“…Therefore, beets have to be stored in field clamps, and prolonged storage results in changes in weight and processing quality (Vukov and Hangyal 1985;Jaggard et al 1997;Campbell and Klotz 2006). During storage, part of the sugar which has been accumulated in the root is hydrolysed to glucose and fructose and finally respired to CO 2 , an enzymatic process, which increases with increasing temperature and storage duration (Berghall et al 1997;Klotz and Finger 2004). This sucrose hydrolysis is not only a direct loss of sugar yield.…”

Section: Storagementioning

confidence: 99%

Root Quality of Sugarbeet

Hoffmann¹

2010

Sugar Tech

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The composition of the sugar beet root affects the recovery of crystalline sugar in the factory considerably. K, Na and amino N are melassigenic and are, therefore, always considered in the assessment of root quality for variety approval, and in some countries also for payment. The development of root quality during the season and the impact of variety, root rots, drought stress, N fertilizer application, defoliation/topping and storage are discussed. A further increase of the sugar concentration in varieties may be restricted by cell turgor and can probably only be achieved with a simultaneous decrease of the concentration of non-sugars. Future needs of the processing industry could change the criteria for quality assessment. It is observed that the alkalinity reserve (ion balance) of the juices gets lower so that soda has to be added. Moreover, long-term storage and the infestation with root rots result in a marked increase of the invert sugar concentration with detrimental consequences for processing. Therefore, quality assessment would probably be improved by considering alkalinity and invert sugar concentration. For the use of sugar beet for biofuel production, the sugar concentration (ethanol) or the organic dry matter (methane) of the roots are important quality criteria.

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“…In Idaho, sugar beet (Beta vulgaris L.) roots may be stored up to 160 days, allowing weather (primarily temperature and moisture) and microbes to negatively influence the sucrose stored in the roots, along with normal respiration and the buildup of impurities (3,5,6,9,34). Other factors can also influence sucrose loss such as scalping, impacts, and wounding during harvest and transport, mud and weeds in piles, and unusually high or low temperatures (2,6,10,13,16,19,33). Disease and drought stress during crop production may also predispose the roots to sucrose loss in storage (8,14,15,27,28).…”

Section: Sugar Beet Cultivar Evaluation For Storability and Rhizomanimentioning

confidence: 99%

Sugar Beet Cultivar Evaluation for Storability and Rhizomania Resistance

et al. 2009

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To reduce storage losses and improve resistance to rhizomania caused by Beet necrotic yellow vein virus (BNYVV), studies were initiated to establish a storage cultivar selection program. In 2006 and 2007, 30 or more commercial sugar beet (Beta vulgaris) cultivars were grown in soil naturally infested with BNYVV. At harvest, two root samples from each plot were collected and used to establish percent sugar. Additional samples were placed on top of an indoor pile (set point 1.7°C) and inside an outdoor pile in a randomized complete block design with four replications. After 142 and 159 days in indoor storage, sucrose reduction ranged from 13 to 90% in 2007 and 57 to 100% in 2008. Outdoor storage sucrose reduction ranged from 13 to 32% in 2007 and 28 to 60% in 2008. An average of 31 and 45% of the root surface was covered with fungal growth in 2007 and 2008, respectively. Cultivars that retained the most sucrose had resistance to BNYVV and the least fungal growth and weight loss. Indoor storage with BNYVV-infested roots allowed for the most consistent cultivar separation and will potentially lead to selection of cultivars for improved storability and rhizomania resistance.

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Impact of temperature, length of storage and postharvest disease on sucrose catabolism in sugarbeet

Cited by 50 publications

References 22 publications

The effect of high electric field pulses on activity of sugar beet o-diphenol oxidase and yeast invertase

The effect of high electric field pulses on activity of sugar beet o-diphenol oxidase and yeast invertase

Root Quality of Sugarbeet

Sugar Beet Cultivar Evaluation for Storability and Rhizomania Resistance

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