1.Nutritional Composition and Cost Differences between Gluten-Free and Gluten-Containing Food Products in Kuala Lumpur, Malaysia
Siti Nur Aishah Mohd Fauad ; Satvinder Kaur ; Siti Raihanah Shafie
Malaysian Journal of Medicine and Health Sciences 2020;16(Supp 6, Aug):178-183
Introduction: The demand for commercial gluten-free food products are increasing due to rising prevalence of lifestyle-related diseases. The market growth is forecasted to increase in numbers. However, to date nutritional comparison of gluten-free and gluten-containing food products is not done extensively in Malaysia. Therefore, this study aimed to investigate the nutritional composition and cost per 100 g between gluten-free and gluten-containing food products in selected grocery stores in Kuala Lumpur. Methods: A total of 106 food products comprising of gluten-free food products (n=41) and gluten-containing food products (n=65) were determined and compared for its nutritional composition and cost per 100 g. The products were obtained from 4 main grocery stores in Kuala Lumpur that supply gluten-free food products. The differences in nutritional composition and cost between both products were analysed by using independent samples t-test. Results: The results showed no difference in energy content between both products. Across the food products, 15 % of gluten-free food products showed higher carbohydrate content compared to its counterparts. Protein content in gluten-free products was 63 % lower than gluten-containing products. Among all gluten-free food products included in this study, only lasagne sheet has lower content of dietary fibre compared to its counterparts. The cost for majority of gluten-free food products was significantly higher, which was two- to four-fold higher compared to gluten-containing products. Conclusion: This study indicated that gluten-free food products showed no nutritional advantage especially in its macronutrients, hence, avoidance of gluten for healthy population may not be beneficial and rather costly.
2.Effect of Roasting on Whole Grain Barnyard Millet to the Proximate Composition, Amino Acid Profile, Total Phenolic Content and Antioxidant Activity
Mazni Syamim Mohd ; Nurul Husna Shafie ; Fairus Ahmad ; Siti Raihanah Shafie
Malaysian Journal of Medicine and Health Sciences 2023;19(No.6):69-76
Introduction: Barnyard millet, an ancient grain that serves as a staple food and a key component of many diets, requires processing before consumption. Roasting is a common processing method that can enhance millet palatability. However, it is important to ensure that the nutritional properties are well preserved. Hence, this study investigated
the influence of roasting on the proximate composition, amino acid composition, total phenolic content (TPC) and
antioxidant activity of the whole grain barnyard millet sample. Method: The roasted sample of whole grain barnyard
millet was roasted in the oven at 110℃ for 10 minutes and used for proximate analysis and amino acid composition. Meanwhile, TPC and DPPH were performed using the ethanol extract of a roasted whole-grain barnyard millet
sample. Results: This study found a significant (p<0.05) of 14.22% reduction in moisture content in roasted millet
compared to non-roasted millet. The roasted millet sample showed a higher fat content (p<0.05) compared to the
non-roasted millet sample, with values of 5.08±0.24% and 4.38±0.24%, respectively. The total amino acid content
of the non-roasted sample was 116.76±11.31ng, while the roasted sample had a value of 123.51±0.23.22ng. In
addition, the TPC and antioxidant activity were found significantly higher (p<0.05) in the roasted sample than in
the non-roasted sample of whole grain barnyard millet. Conclusion: The roasting method should be considered in
processing of the whole grain barnyard millet to enhance the nutrient composition and boost its functionality.
3.Effects of Lacticaseibacillus paracasei Shirota Supplementation on Growth Performance, Intestinal Health, and Fecal AFB1 Metabolite in AFB1-Exposed Rats (Kesan Pemberian Lacticaseibacillus paracasei Shirota terhadap Prestasi Pertumbuhan, Kesihatan Usus dan Metabolit AFB1 di dalam Najis Tikus Terdedah AFB1)
Muhammad Firdhaus Shaharudin ; Siti Raihanah Shafie ; Maizaton Atmadini Abdullah ; Fauzah Abd Ghani ; Mohd Redzwan Sabran
Malaysian Journal of Health Sciences 2024;22(No.2):67-82
Aflatoxin B1 (AFB1) is a toxin produced by Aspergillus species of fungi. Findings in the
literature has shown the potential of probiotic treatment to alleviate AFB1 toxicity. This study
explores the effects of Lacticaseibacillus paracasei Shirota (LcS) supplementation on the
growth performance, intestinal health, and excretion of faecal AFB1 metabolite of AFB1-
exposed rats. Thirty-two male Sprague Dawley rats were divided into control, AFB1,
AFB1+LcS and LcS groups. AFB1 was given at a complete dosage of 25 µg AFB1/kg body
weight, while LcS supplementation at 2×109 CFU/mL per day for four weeks. The average
body weight of the AFB1 group showed no significant increase from week 2 to 4, while other
groups had an increment throughout the study. The food intake of the AFB1 and AFB1+LcS
groups had significantly reduced throughout the treatment period. AFB1 exposure caused
several changes in the histomorphometry parameters but was normalised with LcS
supplementation. The AFB1 group showed mild to moderate inflammation in all intestinal parts,
whereas only mild inflammation was observed in the jejunum and ileum of the AFB1+LcS
group. Faecal Bifidobacterium spp. counts showed an increment in three groups, while the
AFB1 group showed a significant reduction. The faecal AFB1 in the AFB1 group was
significantly lower than in the AFB1+LcS group. In conclusion, AFB1 affected growth
performance and intestinal health, and wherein the effects were alleviated by LcS
supplementation. Further investigation on intestinal permeability and serum and urinary AFB1
level is suggested to understand the mechanism of probiotic-AFB1 interaction in alleviating
AFB1 toxicity.