The Characteristics of Local Dark Brown Waxy Sorghum Rice from Lamongan Due to the Different Polishing Frequency and Soaking Conditions

Dark brown local glutinous sorghum has the potential to replace white rice because it has higher carbohydrate and dietary fiber contents and lower total sugar content. Sorghum has the disadvantages of hard seeds and astringency, which can be reduced by polishing and soaking. The aim of the research...

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Main Authors: Rahmawati Rahmawati, Malika Husni Aulia, Shanti Pujilestari, Julfi Restu Amelia, Joni Munarso
Format: Article
Language:English
Published: Bogor Agricultural University 2025-06-01
Series:Jurnal Ilmu Pertanian Indonesia
Online Access:https://journal.ipb.ac.id/index.php/JIPI/article/view/54953
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author Rahmawati Rahmawati
Malika Husni Aulia
Shanti Pujilestari
Julfi Restu Amelia
Joni Munarso
author_facet Rahmawati Rahmawati
Malika Husni Aulia
Shanti Pujilestari
Julfi Restu Amelia
Joni Munarso
author_sort Rahmawati Rahmawati
collection DOAJ
description Dark brown local glutinous sorghum has the potential to replace white rice because it has higher carbohydrate and dietary fiber contents and lower total sugar content. Sorghum has the disadvantages of hard seeds and astringency, which can be reduced by polishing and soaking. The aim of the research was to study the effect of the polishing frequency and soaking condition on sorghum seed with 2 research variables: (1) the polishing frequency [once and twice] and (2) soaking conditions [(1) 100°C water allowed to reach room temperature for 24 h; (2) 100°C water allowed to reach room temperature for 36 h; (3) baker's yeast 0.25% b/v at room temperature for 24 h; and (4) baker's yeast 0.25% b/v at room temperature for 36 h]. Rice quality was tested for hardness, elasticity, chewiness, stickiness, organoleptic properties, and antioxidant activity. Data was processed using ANOVA (α = 0.05) and Duncan’s Multiple Range Test. The results showed that the polishing frequency and soaking conditions affected the hardness, elasticity, chewiness, and stickiness of sorghum rice. The best sample was found to be twice-polished dark brown glutinous sorghum rice, with a 100 °C water soaking condition, and allowed to reach room temperature for 36 h. The sorghum rice had a hardness of 2,578.6 ± 1,044.4 gf, elasticity of 48.24 ± 0.20%, chewiness of 0.3622 ± 0.00, stickiness of (-76.88 ± 0.76) gs, with antioxidant activity of 0.0041 mg/g (strong), which panelists liked and similar with rice from the parameters of color (score 5.0 ± 0.2), aroma (score 4.5 ± 0.1), texture (score 4.8 ± 0.1), and taste (score 4.5 ± 0.1). Keywords: dark brown waxy sorghum, Lamongan city, local commodity, polishing frequency, soaking condition
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publishDate 2025-06-01
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series Jurnal Ilmu Pertanian Indonesia
spelling doaj-art-af16f77387244c1abdd3e3cebcd7bf4f2025-08-20T03:21:43ZengBogor Agricultural UniversityJurnal Ilmu Pertanian Indonesia0853-42172443-34622025-06-0130310.18343/jipi.30.3.621The Characteristics of Local Dark Brown Waxy Sorghum Rice from Lamongan Due to the Different Polishing Frequency and Soaking ConditionsRahmawati Rahmawati0Malika Husni Aulia1Shanti Pujilestari2Julfi Restu Amelia3Joni Munarso4Food Technology Study Program, Faculty of Food Technology and Health, Universitas Sahid, Jakarta Selatan 12870, IndonesiaFood Technology Study Program, Faculty of Food Technology and Health, Universitas Sahid, Jakarta Selatan 12870, IndonesiaFood Technology Study Program, Faculty of Food Technology and Health, Universitas Sahid, Jakarta Selatan 12870, IndonesiaFood Technology Study Program, Faculty of Food Technology and Health, Universitas Sahid, Jakarta Selatan 12870, IndonesiaFood Technology Study Program, Faculty of Food Technology and Health, Universitas Sahid, Jakarta Selatan 12870, Indonesia; Badan Riset dan Inovasi Nasional (BRIN) Dark brown local glutinous sorghum has the potential to replace white rice because it has higher carbohydrate and dietary fiber contents and lower total sugar content. Sorghum has the disadvantages of hard seeds and astringency, which can be reduced by polishing and soaking. The aim of the research was to study the effect of the polishing frequency and soaking condition on sorghum seed with 2 research variables: (1) the polishing frequency [once and twice] and (2) soaking conditions [(1) 100°C water allowed to reach room temperature for 24 h; (2) 100°C water allowed to reach room temperature for 36 h; (3) baker's yeast 0.25% b/v at room temperature for 24 h; and (4) baker's yeast 0.25% b/v at room temperature for 36 h]. Rice quality was tested for hardness, elasticity, chewiness, stickiness, organoleptic properties, and antioxidant activity. Data was processed using ANOVA (α = 0.05) and Duncan’s Multiple Range Test. The results showed that the polishing frequency and soaking conditions affected the hardness, elasticity, chewiness, and stickiness of sorghum rice. The best sample was found to be twice-polished dark brown glutinous sorghum rice, with a 100 °C water soaking condition, and allowed to reach room temperature for 36 h. The sorghum rice had a hardness of 2,578.6 ± 1,044.4 gf, elasticity of 48.24 ± 0.20%, chewiness of 0.3622 ± 0.00, stickiness of (-76.88 ± 0.76) gs, with antioxidant activity of 0.0041 mg/g (strong), which panelists liked and similar with rice from the parameters of color (score 5.0 ± 0.2), aroma (score 4.5 ± 0.1), texture (score 4.8 ± 0.1), and taste (score 4.5 ± 0.1). Keywords: dark brown waxy sorghum, Lamongan city, local commodity, polishing frequency, soaking condition https://journal.ipb.ac.id/index.php/JIPI/article/view/54953
spellingShingle Rahmawati Rahmawati
Malika Husni Aulia
Shanti Pujilestari
Julfi Restu Amelia
Joni Munarso
The Characteristics of Local Dark Brown Waxy Sorghum Rice from Lamongan Due to the Different Polishing Frequency and Soaking Conditions
Jurnal Ilmu Pertanian Indonesia
title The Characteristics of Local Dark Brown Waxy Sorghum Rice from Lamongan Due to the Different Polishing Frequency and Soaking Conditions
title_full The Characteristics of Local Dark Brown Waxy Sorghum Rice from Lamongan Due to the Different Polishing Frequency and Soaking Conditions
title_fullStr The Characteristics of Local Dark Brown Waxy Sorghum Rice from Lamongan Due to the Different Polishing Frequency and Soaking Conditions
title_full_unstemmed The Characteristics of Local Dark Brown Waxy Sorghum Rice from Lamongan Due to the Different Polishing Frequency and Soaking Conditions
title_short The Characteristics of Local Dark Brown Waxy Sorghum Rice from Lamongan Due to the Different Polishing Frequency and Soaking Conditions
title_sort characteristics of local dark brown waxy sorghum rice from lamongan due to the different polishing frequency and soaking conditions
url https://journal.ipb.ac.id/index.php/JIPI/article/view/54953
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