Comparative elucidation of colour, volatile and phenolic profiles of black carrot (Daucus carota L.) pomace and powders prepared by five different drying methods

2022 ◽  
Vol 369 ◽  
pp. 130941
Author(s):  
Suleyman Polat ◽  
Gamze Guclu ◽  
Hasim Kelebek ◽  
Muharrem Keskin ◽  
Serkan Selli
2021 ◽  
Vol 287 ◽  
pp. 110256
Author(s):  
Muharrem Keskin ◽  
Gamze Guclu ◽  
Yunus Emre Sekerli ◽  
Yurtsever Soysal ◽  
Serkan Selli ◽  
...  

2021 ◽  
Vol 55 (3-4) ◽  
pp. 325-342
Author(s):  
HÜSEYIN BENLI

"This study has been conducted to find out whether black carrot extract can be used as a dyestuff to dye textile materials. For this purpose, the two most widely used textiles (namely, cotton and wool) have been selected. The extractions from the black carrot were performed directly in the dyebath. An ultrasonic bath at 80 °C for 60 minutes was used to increase extraction efficiency. All the dyeing processes were carried out at 100 °C for 60 minutes, both with and without some metal salts, using two different dye concentrations in 1:1 and 1:10 ratios (material weight:dye extraction volume). Six different metal salts, i.e. K2Cr2O7, CuSO45H2O, FeSO47H2O, SnCl22H2O, ZnSO47H2O, KAl(SO4)2.12H2O, were used in the dyeing processes, according to pre- and simultaneous mordanting methods. After the dyeing processes, the dyed samples’ CIE L*a*b* and color efficiency K/S values were determined by spectrophotometry. The SEM and FTIR data of the fabrics were collected and evaluated at the end of the trials as well. At the same time, perspiration, rubbing, washing and light fastness values of the dyed materials were also assessed. Acceptable fastness test results were obtained for the dyed samples. The findings of the study indicated that the dyeability performance of wool and cotton fabrics with black carrot (Daucus carota L.) extract could be greatly influenced by the mordant used and its application method."


2017 ◽  
Vol 66 ◽  
pp. 36-47 ◽  
Author(s):  
Saeed Akhtar ◽  
Abdur Rauf ◽  
Muhammad Imran ◽  
Muhammad Qamar ◽  
Muhammad Riaz ◽  
...  

Agronomy ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 323 ◽  
Author(s):  
Renate Müller ◽  
Henrik Lütken ◽  
Gregorio Barba-Espin ◽  
José A. Hernández ◽  
José R. Acosta-Motos ◽  
...  

Black carrot (Daucus carota L. ssp. sativus var. atroburens) is a root vegetable with anthocyanins as major phenolic compounds. The accumulation of phenolic compounds is a common response to UV-B exposure, acting as protective compounds and as antioxidants. In the present study, black carrot plants grown under a 12-h photoperiod were supplemented with UV-B radiation (21.6 kj m−2 day−1) during the last two weeks of growth. Carrot taproots and tops were harvested separately, and the effect of the UV-B irradiance was evaluated in terms of size (biomass and length), total monomeric anthocyanin content (TMC), total phenolic content (TPC), and phytohormones levels. The results showed that UV-B irradiance promoted plant growth, as shown by the elevated root (30%) and top (24%) biomass, the increased TMC and TPC in the root (over 10%), and the increased TPC of the top (9%). A hormone analysis revealed that, in response to UV-B irradiance, the levels of abscisic acid (ABA), jasmonic acid (JA), and salicylic acid (SA) decreased in tops while the level of the cytokinins cis-zeatin (cZ) and trans-zeatinriboside (tZR) increased in roots, which correlated with an amplified growth and the accumulation of anthocyanins and phenolic compounds. Beyond the practical implications that this work may have, it contributes to the understanding of UV-B responses in black carrot.


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