Influence of tinting on physiological and keeping quality parameters of tuberose (Polianthus tuberosa) spikes

Tinting adds not only variation to flower colours but also to economy of farmers. The different food colours are being used for tinting but little is known about their action. So, the present investigation to evaluate the effect of different food colours on physiological and keeping quality paramet...

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Main Authors: ARADHIKA GUPTA, SHALINI JHANJI
Format: Article
Language:English
Published: Indian Council of Agricultural Research 2021-03-01
Series:The Indian Journal of Agricultural Sciences
Subjects:
Online Access:https://epubs.icar.org.in/index.php/IJAgS/article/view/110953
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author ARADHIKA GUPTA
SHALINI JHANJI
author_facet ARADHIKA GUPTA
SHALINI JHANJI
author_sort ARADHIKA GUPTA
collection DOAJ
description Tinting adds not only variation to flower colours but also to economy of farmers. The different food colours are being used for tinting but little is known about their action. So, the present investigation to evaluate the effect of different food colours on physiological and keeping quality parameters of tuberose (Polianthus tuberosa L.) spikes was conducted at Punjab Agricultural University during 2017-18. The tuberose spikes cv. Prajwal were tinted with food dyes, viz. Apple green, Classic blue, Orange red and Rose pink @ 1% alone and supplemented with sucrose (2%) and citric acid (300 ppm) for 1 and 2 hrs. Tinting had no adverse effect on vase life although other quality parameters, viz. change in weight, dye solution uptake, opening of floret, number of florets drop/spike and water uptake were affected. Based on number of floret drop/spike and floret opening, spikes tinted with Apple green and Classic blue dye solution supplemented with sucrose and citric acid had more acceptability than those tinted with Rose pink and Orange red. The better acceptability of Apple green and Classic blue tinted spikes was associated with more membrane stability index, total soluble protein and total soluble sugar content which decreased with senescence (at the end of vase life). Thus, tinting with Apple green and Classic blue for 1 h in supplemented solution can add colour to tuberose spikes without having any adverse effect on its post-harvest attributes.
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spelling doaj.art-c07861057bae4ecb9267dc1673bd85392023-02-14T08:12:39ZengIndian Council of Agricultural ResearchThe Indian Journal of Agricultural Sciences0019-50222394-33192021-03-0191110.56093/ijas.v91i1.110953Influence of tinting on physiological and keeping quality parameters of tuberose (Polianthus tuberosa) spikesARADHIKA GUPTA0SHALINI JHANJI1Punjab Agricultural University, Ludhiana 141 001, IndiaPunjab Agricultural University, Ludhiana 141 001, India Tinting adds not only variation to flower colours but also to economy of farmers. The different food colours are being used for tinting but little is known about their action. So, the present investigation to evaluate the effect of different food colours on physiological and keeping quality parameters of tuberose (Polianthus tuberosa L.) spikes was conducted at Punjab Agricultural University during 2017-18. The tuberose spikes cv. Prajwal were tinted with food dyes, viz. Apple green, Classic blue, Orange red and Rose pink @ 1% alone and supplemented with sucrose (2%) and citric acid (300 ppm) for 1 and 2 hrs. Tinting had no adverse effect on vase life although other quality parameters, viz. change in weight, dye solution uptake, opening of floret, number of florets drop/spike and water uptake were affected. Based on number of floret drop/spike and floret opening, spikes tinted with Apple green and Classic blue dye solution supplemented with sucrose and citric acid had more acceptability than those tinted with Rose pink and Orange red. The better acceptability of Apple green and Classic blue tinted spikes was associated with more membrane stability index, total soluble protein and total soluble sugar content which decreased with senescence (at the end of vase life). Thus, tinting with Apple green and Classic blue for 1 h in supplemented solution can add colour to tuberose spikes without having any adverse effect on its post-harvest attributes. https://epubs.icar.org.in/index.php/IJAgS/article/view/110953Citric acidSugarsTintingTuberoseValue additionVase life
spellingShingle ARADHIKA GUPTA
SHALINI JHANJI
Influence of tinting on physiological and keeping quality parameters of tuberose (Polianthus tuberosa) spikes
The Indian Journal of Agricultural Sciences
Citric acid
Sugars
Tinting
Tuberose
Value addition
Vase life
title Influence of tinting on physiological and keeping quality parameters of tuberose (Polianthus tuberosa) spikes
title_full Influence of tinting on physiological and keeping quality parameters of tuberose (Polianthus tuberosa) spikes
title_fullStr Influence of tinting on physiological and keeping quality parameters of tuberose (Polianthus tuberosa) spikes
title_full_unstemmed Influence of tinting on physiological and keeping quality parameters of tuberose (Polianthus tuberosa) spikes
title_short Influence of tinting on physiological and keeping quality parameters of tuberose (Polianthus tuberosa) spikes
title_sort influence of tinting on physiological and keeping quality parameters of tuberose polianthus tuberosa spikes
topic Citric acid
Sugars
Tinting
Tuberose
Value addition
Vase life
url https://epubs.icar.org.in/index.php/IJAgS/article/view/110953
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AT shalinijhanji influenceoftintingonphysiologicalandkeepingqualityparametersoftuberosepolianthustuberosaspikes