Purple-fleshed sweetpotatoes (PFSP) can be a healthy food choice for consumers and potential source natural colorants. This study aimed to identify anthocyanins anthocyanidins in PFSP, evaluate the effect of thermal processing on these polyphenolic compounds. Freeze-dried powder raw steamed samples three PFSP varieties were extracted with acidified methanol using Dionex ASE 200 accelerated solvent extractor. Seventeen identified by HPLC-DAD/ESI-MS/MS Stokes Purple NC 415 five major...

‘Covington’ is an orange-fleshed, smooth-skinned, rose-colored, table-stock sweetpotato [ Ipomoea batatas (L.) Lam.] developed by North Carolina State University (NCSU). ‘Covington’, named after the late Henry M. Covington, esteemed scientist at State, was evaluated as NC98-608 in multiple state and regional yield trials during 2001 to 2006. produces yields equal ‘Beauregard’, a dominant variety produced United States, but it typically 5 10 days later maturity. sizes its storage roots more...

Sweetpotato French fries (SPFF) are growing in popularity, however limited information is available on SPFF textural properties relation to chemical composition. This study investigated the relationship between components of different sweetpotato varieties and characteristics SPFF. Sixteen genotypes were evaluated for (1) constituents; (2) instrumental sensory SPFF; (3) components, measurements, attributes. Dry matter (DM), alcohol-insoluble solids (AIS), starch, sugar, oil content, also α-...

Utilizing a high-density integrated genetic linkage map of hexaploid sweetpotato, we discovered major dominant QTL for root-knot nematode (RKN) resistance and modeled its effects. This discovery is useful development modern sweetpotato breeding program that utilizes marker-assisted selection genomic approaches faster gain RKN resistance. The [Meloidogyne incognita (Kofoid & White) Chitwood] causes significant storage root quality reduction yields losses in cultivated [Ipomoea batatas (L.)...

Resistance to root-knot nematodes [ Meloidogyne incognita (Kofoid & White) Chitwood] in sweetpotato Ipomoea batatas (L.) Lam.] was studied a mapping population consisting of 240 progeny derived from cross between ‘Beauregard’, the predominant cultivar United States, and ‘Tanzania’, an African landrace. Quantitative trait loci (QTL) analyses locate markers associated with resistance (RKN) were performed using genetic maps based on parental segregation ‘Beauregard’ ‘Tanzania’ 726 947...

Consumer preference in produce, defined by shape and size, heavily influences this market. Understanding the environmental management factors that impact these features can improve a farmer's economic margins. Since sweetpotatoes are hand-harvested tend to have varying shapes sizes, result unpredictable profit Methods for predicting aesthetic characteristics of using agronomic with machine learning not been developed. Moreover, crop size agricultural data analysis is challenging due need...

Sweetpotato ( Ipomoea batatas ) is traditionally grown for fresh consumption, particularly in developed nations, but it increasingly being used alternative markets such as processed foods and industrial products. well suited these end uses its utilization limited due to high production costs. These costs are primarily the result of labor inputs. As a vegetatively propagated crop, sweetpotato typically planted using unrooted plant cuttings, or “slips,” which requires hand at several stages....

Black rot of sweetpotato, caused by Ceratocystis fimbriata, is an important reemerging disease threatening sweetpotato production in the United States. This study assessed susceptibility storage root surface, cambium, and slips (vine cuttings) 48 cultivars, advanced breeding lines, wild relative accessions. We also characterized effect development on to C. fimbriata. None cultivars examined at level were resistant, with most exhibiting similar levels susceptibility. In roots, Jewel Covington...

Sweetpotato varieties vary greatly in perceived textures and sweetness. This study identified physicochemical factors that influence these attributes cooked sweetpotatoes. Fifteen genotypes grown on three plots were baked evaluated by a trained descriptive sensory analysis panel for sweetness 13 texture attributes. Mechanical parameters measured profile (TPA); composition (starch, cell wall material, sugar contents), starch properties (thermal, granule type ratios, sizes), amylase activities...

Decline in sweetpotato yield and storage root quality has been attributed to the accumulation of viruses, pathogens mutations. To document effects decline on quality, two micropropagated, virus-indexed, greenhouse produced G1 `Beauregard' meristem-tip cultured clones, B94-14 B94-34, were compared with 1) micropropagated B94-34 clones propagated adventitiously up five years field (G2, G3, G4, G5); 2) nonmicropropagated, unimproved stock seed trials during 1997 2001. At least three located...

Potential resistance to the guava root-knot nematode, Meloidogyne enterolobii, in 91 selected sweetpotato (Ipomoea batatas [L.] Lam.) genotypes was evaluated six greenhouse experiments. Ten thousand eggs of M. enterolobii were inoculated on each genotype grown a 3:1 sand soil mixture. Sixty days after inoculation, percentage total roots with nematode-induced galls determined, and nematode extracted from roots. Significant differences (P < 0.001) between found all tests for gall rating,...

New-found interest in sweetpotato production the Mid-Atlantic and Northeastern U.S. has been steadily increasing last several years. Sweetpotatoes are usually grown for fresh market use novel marketing strategies new consumer niches providing farmers options of growing varieties with exciting colors flavor profiles that adapted to Petite sweetpotatoes have gained attention because they easier handle faster cook compared No. 1 storage roots. The goal this research was determine performance...

Abstract Background Variability in sugar content between raw and cooked sweetpotato storage roots impact nutritional dietary importance with implications for consumer preference. High‐throughput phenotyping is required to breed varieties that satisfy preferences. Results Near‐infrared reflectance spectroscopy (NIRS) calibration curves were developed analysing sugars baked using 147 genotypes from a population segregating other traits. The NIRS prediction had high coefficients of...

Interest in the potential of sweetpotato ( Ipomoea batatas ) for production industrial products is increasing. As part an effort to evaluate sweetpotatoes starch and anthocyanin southeastern United States, a 5 × North Carolina mating design II (NCII design) was developed estimate relative importance general specific combining abilities dry matter (DM) content, total monomeric (TMA) concentration, fresh yield, DM yields. All five traits had significant (GCA). Yield yield abilities....

Beneficial lactic acid bacteria (LAB) based fermentation is an effective biotransformation strategy to preserve and improve the human health-supporting functional qualities of plant-based food substrates. In this study, a grade strain Lactiplantibacillus plantarum was recruited retention, stability, bioavailability phenolic bioactives enhance antioxidant, anti-hyperglycemic, anti-hypertensive three flesh-colored sweet potato varieties, Murasaki (off-white-fleshed), Evangeline...

Various workers have attempted to develop a root piece planting system for sweetpotato, similar the used commercially potato, but attempts select and breed sweetpotato clones adapted met with mixed success. It has been hypothesized this is result of significant genotype × environment effects, which are complicating phenotype screening. The aim work was investigate interactions yield stability grown from cut pieces. Ten were pieces in three locations over seasons at sites North Carolina...