Valentina Dwi Suci Handayani
Department Of Agronomy, Faculty Of Agriculture, Universitas Gadjah Mada Jln. Flora No. 1, Bulaksumur, Sleman, Yogyakarta 55281, Indonesia

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Chitosan coating and packaging to maintain the physical quality of beet tubers Garusti, Garusti; Indradewa, Didik; Handayani, Valentina Dwi Suci; Putra, Eka Tarwaca Susila; Nurwita, Ardian
AGROINTEK Vol 19, No 3 (2025)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v19i3.26880

Abstract

Beet tubers are perishable horticultural commodities, cannot be stored for long, and are commonly consumed in fresh conditions. Postharvest handling of beet tubers needs to be carried out to maintain their freshness Chitosan and other packaging used in postharvest handling of fresh beet tubers have not yet been reported. This study aims to determine the effect of chitosan coating and types of packaging on beet tubers on the physical quality of beet tubers. The study was a randomly designed group with two factors; the first factor was chitosan concentration, and the second factor was the kinds of packaging. Chitosan concentration consists of 5 levels, namely 0, 0.5%, 1%, 1.5%, and 2%, and the type of packaging includes no packaging (Without), plastic packaging with holes (Perforated), ordinary plastic packaging (Ordinary) and plastic vacuumed (Vacuum). The beet tubers were soaked in chitosan solution of 0, 0.5%, 1%, 1.5%, and 2% for 1 minute, air-dried, then were packaged with no packaging, plastic packaging with holes, ordinary plastic packaging, and plastic vacuumed. .  The physical quality parameters observed were moisture content, weight loss respiration rate,electrolyte leakage, total dissolved solid (TDS), ascorbic acid, betacyanin, betaxanthins,  tuber firmness, damage percentage, and visual quality rating (VQR). Data were analyzed using Anova variant analysis and then continued with Tuckey tests with a 95% confidence level using R studio software. The results showed that chitosan coating did not affect the physical quality of beet tubers, while packaging affected the quality of beet tubers. The most suitable packaging to maintain the physical quality of beet tubers is plastic packaging with holes (perforated).
Chitosan coating and packaging to maintain the physical quality of beet tubers Garusti Garusti; Didik Indradewa; Valentina Dwi Suci Handayani; Eka Tarwaca Susila Putra; Ardian Nurwita
AGROINTEK Vol 19, No 3 (2025)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v19i3.26880

Abstract

Beet tubers are perishable horticultural commodities, cannot be stored for long, and are commonly consumed in fresh conditions. Postharvest handling of beet tubers needs to be carried out to maintain their freshness Chitosan and other packaging used in postharvest handling of fresh beet tubers have not yet been reported. This study aims to determine the effect of chitosan coating and types of packaging on beet tubers on the physical quality of beet tubers. The study was a randomly designed group with two factors; the first factor was chitosan concentration, and the second factor was the kinds of packaging. Chitosan concentration consists of 5 levels, namely 0, 0.5%, 1%, 1.5%, and 2%, and the type of packaging includes no packaging (Without), plastic packaging with holes (Perforated), ordinary plastic packaging (Ordinary) and plastic vacuumed (Vacuum). The beet tubers were soaked in chitosan solution of 0, 0.5%, 1%, 1.5%, and 2% for 1 minute, air-dried, then were packaged with no packaging, plastic packaging with holes, ordinary plastic packaging, and plastic vacuumed. .  The physical quality parameters observed were moisture content, weight loss respiration rate,electrolyte leakage, total dissolved solid (TDS), ascorbic acid, betacyanin, betaxanthins,  tuber firmness, damage percentage, and visual quality rating (VQR). Data were analyzed using Anova variant analysis and then continued with Tuckey tests with a 95% confidence level using R studio software. The results showed that chitosan coating did not affect the physical quality of beet tubers, while packaging affected the quality of beet tubers. The most suitable packaging to maintain the physical quality of beet tubers is plastic packaging with holes (perforated).
Evaluasi Induksi Umbi Mikro secara In Vitro pada Beberapa Kultivar Bawang Merah (Allium cepa L. kelompok Aggregatum) pada Kondisi Sukrosa Tinggi Nofiya Ruswanti; Widhi Dyah Sawitri; Muhammad Idris; Valentina Dwi Suci Handayani; Ani Widiastuti
Vegetalika Vol 15, No 2 (2026): In Publish
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/veg.103197

Abstract

Development of microbulb in shallots (Allium cepa L. Aggregatum group) is induced by adding a higher sucrose content to the in vitro culture medium. Therefore, this study was conducted to evaluate microbulb formation by enhancing the sucrose concentration up to 8%. The ‘Sanren’ cultivar was used as a model to observe the effect of additional sucrose treatment, between 3% (P1) and 8% (P2), in Murashige and Skoog (MS0) media over ten weeks. The result showed that microbulbs in the ‘Sanren’ cultivar developed successfully in the P2 treatment. Following these findings, several other shallot cultivars— ‘Lokananta’, ‘Maserati’, and ‘Merdeka’—were assessed using the 8% sucrose concentration to trigger microbulb formation. The microbulbs initially formed following a color change at the plant’s basal part eight weeks after planting. Difference in response regarding plant height and microbulb weight were observed among the cultivars. Plant height was greater in the ‘Sanren’ than in ‘Lokananta’ and ‘Maserati’ at eight weeks after planting. At ten weeks after planting, ‘Maserati’ and ‘Merdeka’ exhibited the highest microbulb weight. In this study, we assumed that each cultivar has a differing ability to absorb the carbon source, which in turn affects the development of microbulb formation in the in vitro medium. The higher sucrose content in the in vitro medium mimics the condition where photosynthates are translocated to the basal plant, leading to shallot microbulb formation. This innovation has the potential to facilitate efficient in vitro microbulb production through the addition of 8% sucrose.