Kadar Proksimat Dan Nilai Pgi (Predicted Glycemic Index) Beras Hitam Varietas Cempo Ireng, Jowo Melik, Dan Toraja

Nurhayati, ApriniaDian (2015) Kadar Proksimat Dan Nilai Pgi (Predicted Glycemic Index) Beras Hitam Varietas Cempo Ireng, Jowo Melik, Dan Toraja. Sarjana thesis, Universitas Brawijaya.

Abstract

Penelitian ini bertujuan membandingkan dan mengkorelasikan kadar proksimat (protein, lemak, air, abu, dan karbohidrat) dengan nilai pGI (predicted glycemic index) antara beras hitam varietas Cempo Ireng, Jowo Melik, dan Toraja, serta menentukan varietas yang paling berpotensi menjadi pangan fungsional berindeks glikemik rendah. Penelitian ini menggunakan Pre-Experimental Design dengan satu faktor yang terdiri atas 3 level, yaitu varietas Cempo Ireng, Jowo Melik, dan Toraja. Kadar proksimat dianalisis menggunakan metode AOAC 1984 (Association of Official Analytical Chemist), sedangkan indeks glikemik diuji secara in vitro (pGI). Hasil analisis menunjukkan terdapat perbedaan kadar protein, lemak, air yang signifikan diantara ketiga varietas (p<0,05). Kadar abu Cempo Ireng dengan Jowo Melik tidak berbeda signifikan satu sama lain (p>0,05), tetapi keduanya memiliki perbedaan yang signifikan dengan Toraja (p<0,05). Kadar karbohidrat Cempo Ireng dan Jowo Melik tidak berbeda signifikan (p>0,05), tetapi keduanya memiliki perbedaan signifikan dengan Toraja (p<0,05). Tidak ada perbedaan nilai pGI yang signifikan diantara ketiga varietas beras hitam (F2,51=0,66; p>0,05, η2=0,02). Terdapat korelasi negatif lemah antara kadar protein, lemak, dan karbohidrat dengan nilai pGI, serta korelasi positif lemah antara kadar air dan abu dengan nilai pGI dan korelasi ini tidak signifikan secara statistik (p>0,05). Jowo Melik menjadi varietas paling berpotensi dikembangkan menjadi pangan fungsional berindeks glikemik rendah. Varietas berpengaruh signifikan pada kadar proksimat, tetapi tidak berpengaruh pada nilai pGI. Kadar proksimat tidak berpengaruh pada nilai pGI.

English Abstract

This research was conducted in order to compare and correlate the proximate profiles and predicted Glycemic Index (pGI) value of three black rice varieties: Cempo Ireng, Jowo Melik, and Toraja. In addition, the most potential low glycemic-functional food variety was determined. This study was one factor experimental design with three levels of black rice varieties: Cempo Ireng, Jowo Melik, and Toraja. Proximate profiles and predicted glycemic index value were determined using AOAC 1984 (Association of Official Analytical Chemist) and in vitro methods, respectively. Proteins, fats, and water content were significantly different between Toraja, Jowo Melik, and Cempo Ireng (p<0,05). Ash content between Cempo Ireng and Jowo Melik was not significantly different (p>0.05), but both of them unlikely the same with Toraja (p<0.05). Carbohydrate content between Cempo Ireng and Jowo Melik was not significantly different (p>0.05), but both of them unlikely the same with Toraja (p<0.05). pGI value is not significantly different among the three varieties (F2,51=0.66;p>0,05;eta=0,02). There were weak negative correlation between proteins, fats, and carbohydrates profile to pGI value, and weak positive correlation between water content and ash profile to pGI value. Yet, all of those correlation were not statistically significant (p>0,05). Jowo Melik is the most potential low glycemic-functional food. Black rice variety is significantly affecting proximate profiles, yet not affecting pGI value. Proximate profiles is not affecting pGI value.

Item Type:	Thesis (Sarjana)
Identification Number:	SKR/FK/2015/651/ 051506265
Subjects:	600 Technology (Applied sciences) > 613 Personal health and safety > 613.2 Dietetics
Divisions:	Fakultas Kedokteran > Ilmu Gizi
Depositing User:	Kustati
Date Deposited:	24 Feb 2016 10:53
Last Modified:	31 Dec 2024 04:26
URI:	http://repository.ub.ac.id/id/eprint/125444

Text Aprinia Dian Nurhayati.pdf Download (2MB)

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