Hemicellulose-based nanocomposites coating delays lignification of green asparagus by introducing AKD as a hydrophobic modifier

2021 ◽  
Author(s):  
Zeshan Tian ◽  
Renfeng Zhang ◽  
Yuxin Liu ◽  
Jiasai Xu ◽  
Xinliang Zhu ◽  
...  
Keyword(s):  
Green Asparagus

scholarly journals Evaluation of Physiological and Quality Parameters of Green Asparagus Spears Subjected to Three Treatments against the Decline Syndrome

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 937
Author(s):  
Francisco Javier López-Moreno ◽  
Santiago Atero-Calvo ◽  
Eloy Navarro-León ◽  
Begoña Blasco ◽  
Teresa Soriano ◽  
...  
Keyword(s):  
Early Death ◽  
Amino Acid Profile ◽  
Quality Parameters ◽  
Asparagus Officinalis ◽  
Chicken Manure ◽  
Economic Losses ◽  
Whole Plants ◽  
High Level ◽  
Green Asparagus

Green asparagus (Asparagus officinalis L.) is a widely grown and consumed crop which provides high-level nutritional interest. In recent years, the decline syndrome in asparagus plantations has been rapidly augmenting. This syndrome causes the early death of whole plants, also negatively affecting the new replanting. Decline causes notable economic losses in the sector. The objective of this work was to verify the effect of different treatments against asparagus decline syndrome on the physiological parameters and nutritional quality of the spears. To meet the objective, four different treatments were applied to asparagus plots strongly affected by decline syndrome: (T1) untreated control soil, (T2) biofumigation with Brassica pellets, (T3) biofumigation with chicken manure pellets, and (T4) disinfestation of the soil with Dazomet. The cumulative yield and physiological and quality parameters of green asparagus spears were studied. Thus, malondialdehyde (MDA), photosynthetic pigments, glutathione (GSH), ascorbate (AsA), total phenols, flavonoids, anthocyanin, antioxidant test, mineral nutrients, and the amino acid profile were measured on asparagus spears. The results showed that the Brassica pellets and Dazomet treatments were the most effective against the damage caused by the decline syndrome. However, it would be necessary to monitor the evolution in the following years.

scholarly journals Packaging Solutions to Extend the Shelf Life of Green Asparagus (Asparagus officinalis L.) ‘Vegalim’

Foods ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 478
Author(s):  
Stefania Toscano ◽  
Valeria Rizzo ◽  
Fabio Licciardello ◽  
Daniela Romano ◽  
Giuseppe Muratore
Keyword(s):  
Shelf Life ◽  
Color Difference ◽  
Asparagus Officinalis ◽  
Total Phenolic ◽  
Postharvest Life ◽  
Sensory Color ◽  
Highly Correlated ◽  
Enzymatic Changes ◽  
Green Asparagus

The aim of the study was to assess, through a comparative shelf-life test, the suitability of two packaging materials, namely macro-perforated polypropylene (PP MA) and micro-perforated coextruded polypropylene (PP C), for the quality preservation of green asparagus (Asparagus officinalis L. ‘Vegalim’). Quality of spears was evaluated during 30 days at refrigerated storage by monitoring chemical, physical, and enzymatic parameters as well as sensory descriptors. PP C kept headspace composition close to suggested values for fresh green asparagus. Total color difference increased during the storage and it was highly correlated with chlorophyll-a and carotenoids, however, sensory color perception did not change significantly until 22 days of storage. PP C maintained ascorbic acid concentrations close to the initial levels, limited total phenolic compound loss to 24% (45% in PP MA), determined an increase of 72% in fiber content and small changes in lignin value; enzymatic changes were significantly inhibited. Significant sensorial differences were detected after 22 days of storage, with PP C performing better than PP MA. PP C film was confirmed as the best choice, limiting weight loss and maintaining a fresh-like appearance during 30 days of storage, thus allowing an extension in postharvest life.

scholarly journals Sanitation of fresh green asparagus and green onions inoculated with Salmonella

2009 ◽  
Vol 27 (No. 6) ◽  
pp. 454-462 ◽  
Author(s):  
M.A. Martínez-Téllez ◽  
F.J. Rodríguez-Leyva ◽  
I.E. Espinoza-Medina ◽  
I. Vargas-Arispuro ◽  
A.A. Gardea ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Lactic Acid ◽  
Exposure Time ◽  
Salmonella Enterica ◽  
Fresh Produce ◽  
Clean Water ◽  
Effective Agent ◽  
Serovar Typhimurium ◽  
Postharvest Handling ◽  
Green Asparagus

The absence of good agricultural and manufacturing practices in the production and postharvest handling of fresh produce, such as green asparagus or green onions increase the contamination risk by biological hazards like Salmonella. The objective of this work was to investigate the efficacy of chlorine (200 and 250 ppm), hydrogen peroxide (1.5% and 2%), and lactic acid (1.5% and 2%) sanitisers during different exposure times (40, 60, and 90 s) on the reduction of <i>Salmonella enterica</i> subspecie <i>enterica</i> serovar Typhimurium in inoculated fresh green asparagus and green onions. Washing with clean water only reduced < 1 log10 CFU/g in both vegetables. The most effective sanitiser evaluated for fresh green asparagus and green onions disinfection appeared to be 2% lactic acid reducing <i>Salmonella</i> growth close to 3 log<sub>10</sub> CFU/g. Hydrogen peroxide was the least effective agent for <i>Salmonella</i> Typhimurium reduction. No effect was observed of the exposure time of inoculated product to sanitiser up to 90 seconds. These results confirm that lactic acid could be used as an alternative for fresh green asparagus and green onions sanitation.

scholarly journals Effects of Furrow Height and Amount of Manure Compost on the Growth, Yield, and Quality of Organically Grown Green Asparagus

2021 ◽  
Vol 4 (2) ◽  
pp. 1056-1066
Author(s):  
Nguyen Hong Hanh ◽  
Nguyen Thi Ai Nghia ◽  
Nguyen Thi Ngoc Dinh ◽  
Do Thi Huong
Keyword(s):  
Block Design ◽  
Growth Yield ◽  
Asparagus Officinalis ◽  
Manure Compost ◽  
Yield And Quality ◽  
Upland Crop ◽  
National University ◽  
Organically Grown ◽  
Green Asparagus

A two-season field trial was carried out in the Upland Crop Experiment Field of the Faculty of Agronomy, Vietnam National University of Agriculture (VNUA) to assess the effects of three furrow heights (20, 35, and 50cm) and three manure compost levels (15, 25, and 35 tons ha-1) on the growth, yield, and quality of green asparagus (Asparagus officinalis L.) grown organically. The experiments were arranged in a randomized completely block design (RCBD) with three replications. The results showed that the harvested yield was highest (11.3 and 25.1 quintals ha-1 in the 2019 autumn and 2020 spring season, respectively) in the treatment with a furrow height of 35cm and compost level of 35 tons ha-1 in both seasons, and explained by the increased spear diameters and number of spears per plant in this treatment when the furrow height and compost level were increased. Additionally, the chlorophyll content, water loss, and dry matter weight of the spears also increased when the furrow height and compost level increased. The obtained quality of the spears under organic management at the furrow height of 35 cm and compost level of 35 tons ha-1 was higher than the other treatments with higher reducing sugars, vitamin C, and Brix values, while the residue nitrate contents of all the treatments were lower than the allowed safety threshold.

scholarly journals Spear Yield of One-year-old Rootstock Dug up in October in Green Asparagus Forcing Culture in the Ohotsuku Region of Hokkaido

2012 ◽  
Vol 11 (4) ◽  
pp. 491-495 ◽  
Author(s):  
Tatsuru Jishi ◽  
Hiroshi Gorai ◽  
Chikako Monden ◽  
Hajime Araki
Keyword(s):  
Forcing Culture ◽  
One Year ◽  
Green Asparagus
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