Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 456490
Title Horti Indigo for denim : haalbaarheidsstudie en marktontwikkeling
Author(s) Lans, C.J.M. van der; Noort, F.R. van; Garcia Victoria, N.
Source Bleiswijk : Wageningen UR Glastuinbouw'Kenniscentrum Plantenstoffen (Rapport / Wageningen UR Glastuinbouw 1317) - 38
Department(s) WUR GTB Teelt & Gewasfysiologie
WUR GTB Teelt & Bedrijfssystemen
Publication type Research report
Publication year 2014
Keyword(s) glastuinbouw - kleurstoffen (dyes) - verfplanten - indigofera tinctoria - haalbaarheidsstudies - nederland - greenhouse horticulture - dyes - dye plants - feasibility studies - netherlands
Categories Dyes and Paints
Abstract The (sub) tropical plant Indigofera is grown for use as indigo dye. This feasibility study focused at the technical and economic potential of sustainable greenhouse cultivation of Indigofera. Outdoor cultivation (Asia) produces 30.87-76.72 kg dye/ha. Yield enhancing factors are cultivar, plant stage at harvest, light color during cultivation, day length, plant density, fertilization (N, P), CO2 gift, and hydroponic cultivation. Market price for natural indigo is around 35 euro/kg (6-10 times higher than synthetic indigo). Higher market prices seem possible. The worldwide growing interest for natural, sustainable textile fibres and dyes shows market opportunities. The textile industry is aware that current indigo cultivation in Asia is not very sustainable. Two greenhouse cultivation variants were calculated: ‘high-tech’ greenhouse cultivation (heated, intense cultivation) and ‘mid-tech’ greenhouse cultivation (container plants, non-heated cultivation). Estimated costs of ‘ high-tech ‘ greenhouse cultivation indigo are 63 €/m2 per year and for ‘mid-tech ‘ greenhouse cultivation 43 €/m2. With current market prices and content levels a leaf production of 10.217 kg/m2/year (hig-tech cultivation) or 7.016 kg/m2/year (mid-tech cultivation) is necessary. When indigo content can be increased through specific cultivation measures, or significant higher prices than the reported market prices can be realized, a business case ‘horti indigo’ will become feasible. Crucial is commitment from buyers for high market prices and buying amounts.
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