Asian Food Science Journal
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Nutritional Study of Four Leafy Vegetables Produced and Sold in the Southern Zone of Brazzaville (Republic of Congo)
No full textGenerally overlooked by consumers, many local leafy vegetables in the Republic of Congo are considered to be part of the rural way of life and “poor man's food”. In order to promote their consumption, this study was carried out to assess the nutrient composition of four leafy vegetables (Amaranthus hybridus L, Basella alba, Solanum nigrum L and Ipomea batatas L).
The leafy vegetables were collected from two markets and two market garden sites. The pH and the contents in moisture, protein, ash, lipids and minerals (Ca, P, Fe and Mg) were determined using standard analytical methods (Association of Official Analytical Chemists).
The results indicate that the four leafy vegetables have a pH of between 6 ± 0.03 and 7 ± 0.04, high moisture content (81.43 ± 0.20 to 94.89 ± 0.12 g/100g FW), high protein content (21.95 ± 0.05 to 32.59 ± 0.07 g/100g FW) and high ash content (13.32 ± 0.05 to 25.78 ± 0.03 g/100g FW). All the vegetables were low in lipids (between 2.73 ± 0.23 and 4.81 ± 0.20 g/100gDW). The investigations also show that the four vegetables studied have high levels of phosphorus (389.27 ± 3.23% to 875.22 ± 3.16 mg/100 g DM), iron (70.29 ± 0.15 to 180.06 ± 1.21 mg/100 g DM), calcium (106.78 ± 3.25 to 3404.57 ± 8.07 mg/100 g DM) and magnesium (679.20 ± 2.25 to 2331.25 ± 3.26 mg/100 g DM). In addition, the vegetables collected at the market garden site of the municipal garden had the best a best Ca/P ratio (2.56 to 4.59).
These findings suggest that these leafy vegetables represent a genuine alternative source of protein and especially micronutrients (iron, phosphorus, calcium, magnesium) for human nutrition, health and food safety
Nutritional Quality and In vitro Protein Digestibility of Complementary Foods Formulated from Maize, Cowpea and Orange-Fleshed Sweet Potato Flours: A Preliminary Study
No full textComplementary foods were formulated from blends of maize, cowpea and orange fleshed sweet potatoes (OFSP). Five different blends of flour were formulated with the substitution with cowpea flour at 5-30%, and OFSP substitution at 5-20% while 100% maize flour was used as the control. The flour blends were heated and extruded using a cold extruder. The samples were thereafter analyzed for their proximate, mineral, and vitamin compositions, and % In vitro Protein Digestibility. The moisture, ash, fat, crude protein, crude fibre, carbohydrate and energy of the complementary fruits samples varied from 8.11-11.39%, 2.27-3.66%, 2.20-3.10%, 8.87-13.07%, 2.39-4.07%, 68.90-73.43% and 357.08-367.68 Kcal/100g, respectively. All the samples were within the standard RDA for infants and young children, except for fat which was less than 10% recommendation. The mineral contents of the complementary food samples ranged from 44.20 – 80.67mg/100g for calcium, 8.86 – 24.50 mg/100g iron, 127.23- 167.72 mg/100 g magnesium, 1.53 -3.17 mg/100g zinc, 31.75 – 63.75 mg/100g phosphorus and 26.86 – 39.98 mg/100g sodium. There were significantly increase (p < 0.05) in these minerals as the substitution with cowpea and OFSP flours increased. β -carotene and vitamin C content of the complementary food samples ranged from 10.90 – 31.00 mg/100g and 1.80 – 12.01 mg/100 g, respectively. Increase in substitution with cowpea and OFSP led to an increase in β -carotene values. Vitamin content also increase significantly (P<0.05) with increase in proportion of cowpea and OFSP flours. % in vitro protein digestibility of the samples varied between 30.29 in MCOA (100% maize complementary food) to 48.77% in sample MCOF (50% maize: 30% cowpea: 20% OFSP). Protein digestibility of the complementary food samples also increased significantly with increase in substitution. Most of the nutrients were highest in the samples containing 20% an 10% OFSP and 30% cowpea and 20% OFSP, making these samples suitable for use as of complementary foods.  
Recipe for Brown Rice Milk-based Vegan Ice Cream
No full textThe market for plant-based proteins, particularly alternatives to dairy products, is growing due to health benefits and environmental concerns. Many people are adopting plant-based diets, due to lactose intolerance, vegan and vegetarian lifestyles; thus, promoting lactose-free and cholesterol-free alternatives to milk-derived products such as ice cream. Rice, which is a lactose and gluten free product, as well as low in fat, and calories, could be a promising substitute for dairy milk in foods such as ice cream. In the current study, the development of a novel recipe for ice cream based on brown rice milk was investigated. After standardizing the rice milk production protocol, six combinations of hydrocolloids were used as emulsifiers, as well as four sweeteners for granulated sugar substitution were tested. In all formulations, meltdown and overrun parameters were measured and at the final stage organoleptic evaluation was conducted to determine the level of sensory panel acceptance. In conclusion, it was evident that the rice milk-based ice cream, which combines xanthan gum, guar gum, k-carrageenan, with 30% sugar substitution with stevia, was the formulation with the highest acceptance in the physiological characteristics and sensory evaluation
Sensory, Proximate and Mineral Properties of Smart Baby-Led Weaning Foods from Millet, Soybean and Ripe Banana Flour Blends
No full textAim: The need for formulating and developing smart baby-led weaning (BLW) foods from millet, soybean and ripe banana flour blends as alternative complementary foods inspired this study, which had no documentation in literatures.
Place and Duration of Study: Department of Food Technology, Auchi Polytechnic, Auchi, Nigeria from June 2022 to January 2023.
Methodology: Smart BLW foods were formulated from millet, soybean and ripe banana flour blends and coded as WMF (100% whole millet flour), MSB1 (60% millet; 20% soybean; 20% ripe banana) and MSB2 (50% millet; 30% soybean; 20% ripe banana). The sensory, proximate and mineral compositions of the foods formulated were compared with those of commercial weaning food (CWF).
Results: MSB1 and MSB2 competed favourably with CWF in terms of texture, general acceptability, colour, aroma and taste attributes with high negative deviation most noticeable in WMF (P < 0.05), and exhibited acceptable shelf-life and stability. The ash contents ranged from 1.16±0.02% (WMF) to 2.83±0.02% (MSB2). Increase in fat content in MSB1 to CWF was ≈534%, MSB2 to CWF was ≈492%, MSB1 to WMF was ≈385% and MSB2 to WMF was ≈353% while their protein abundances were in the ratios 1:3.6 for CWF:MSB1, 1:5.9 for CWF:MSB2, 1:2.4 for MWF:MSB1 and 1:3.9 for MWF:MSB2. Generally, MSB1 and MSB2 were appropriate sources of Na, K, Ca, Mg and Zn compared to CWF and WMF in providing adequate intake (AI) and recommended daily allowance (RDA) of these minerals in both infants and children in the age classes of 0-6 months, 7-12 months and 1-3 years.
Conclusion: MSB1 and MSB2 exhibited better intrinsic properties than WMF when compared with CWF. MSB1, however had better general performances than MSB2 and therefore, was recommended as the best smart BLW food formulation from this research
Changes in the Physical Quality of Culled Layer Chicken Meat at Different Ultrasonic Time Levels
No full textAims: This study aims to determine changes in the quality of culled layer chicken meat at different ultrasonic time levels based on Cooking loss, pH, Electrical Conductivity (EC), Tenderness and Color L*a*b*. the material used is culled layer chicken meat which has been ultrasonic.
Study Design: The method used in this research is experimental laboratory using Completely Randomized Design (CRD) with 5 treatments and 4 replications.
Place and Duration of Study: Animal Product Technology Departement, Faculty of Animal Science, University of Brawijaya, Malang, Indonesia, between September-November 2022.
Methodology: Ultrasonic treatment for 10 minutes (P1), 15 minutes (P2), 20 minutes (P3), 25 minutes (P4), and 30 minutes (P5). Parameters observed were Cooking loss, pH, Electrical Conductivity (EC), Tenderness and Color. Data were analyzed using Analysis of Variance (ANOVA). If the data showed a significant difference, continued with Duncan's Multiple Range Test (DMRT).
Results: The average cooking loss value is 2.24-4.07; pH 6.21-6.40; EC 0.61-0.76; tenderness 6.9-10.8; color L* 45.79-51.62; a*6.30-6.54; b* 12.56-13.19.
Conclusion: The results showed that ultrasonic treatment with a different time in culled layer chicken meat had no significant effect (P>0.05) on the pH, EC, color but could have significant
Fat and Protein Composition and Consumer Accepatbility of Modified Thai Ice Tea (CHA-YEN)
No full textAims: Thai tea is known as Thai ice or "Cha-yen". Apart from Cha Yen or Ceylon other ingredients that may be added to Thai tea are orange water, star anise, sour seeds or red and yellow food coloring and sometimes there are also those who add spices. The purpose of this study is to design a green tea mocca flavor variant that consumers like and combine the green tea mocca flavor variant with seaweed toppings and to find out the proximates and food safety aspects (dyes) of contemporary ice drinks, namely green tea mocca.
Place and Duration: This research was analyzed at the Makassar Health Laboratory Center from January, 5 to February, 5, 2023.
Study Design: The study (proximate test) was processed descriptively where data was taken from 2 different cafes and then asked to make a taste whose composition and volume comparison had been determined by the researcher. While the sensory test uses an independent T-test. The research data were analysed using analysis of variance (SPSS version 20).Research parameters are color and nutritional value (rotein and fat) with treatment A1 : hot tea : sweetened condensed milk : Mocca = 50 ml : 12 ml : 15 grams, A2 : hot tea : sweetened condensed milk = 50 ml : 18 ml : 15 grams and A3 = hot tea : sweetened condensed milk : Mocca = 50 ml : 24 ml : 15 grams.
Results: The research result of the addition of differenton sweetened condensed milk gave different proximate test result. The average protein and fat content was the A1 treatment = fat content 0.35% and protein content 0.70%, treatment A2 = fat content 0.36% and protein content 0.80% while A3 = fat content 0.36% and protein content 0.87%. While the sensory test the more sweetened condensed milk given the bitter taste of the mocca cafee the less the thai-tea drink. So that the higher the addition of sweetened condensed milk (A3=24 ml) the more the panelist liked it.
Conclusion: The color combination of the two cafes that compose or design colors is very attractive (25 panelists). While the sensory test the more sweetened condensed milk given the bitter taste of the mocca cafee the less the thai-tea drink. So that the higher the addition of sweetened condensed milk (A3=24 ml) the more the panelist liked it. Proximate quality A3 = fat content 0.36% and protein content 0.87% Food safety analysis for color also gives safe results (qualitatively negative) and is allowed
Quality and Safety Concerns of Farmed Tilapia Fish during Freezing and Frozen Storage: Review
No full textThis study addresses the growing concern over the quality and shelf life of farmed fish products in the market due to the increasing demand in the international market. Various preservation methods are necessary to ensure food safety and extend the shelf life of fish products. Freezing and chilling are still considered the most reliable methods for preserving farmed fish. The study reviews techniques for extending the shelf life of frozen farmed fish, with a focus on the most common species in the international market. Results suggest that good frozen storage conditions and the method of preservation are critical factors in reducing post-harvest losses and extending the shelf-life of farmed fish in the market. The study recommends adopting freezing and frozen storage principles for farmed fish species, prioritizing quality concerns post-harvest, and paying close attention to optimal frozen storage conditions. The study also recommends adopting freezing and frozen storage principles to preserve and maintain the quality of farmed fish species, such as Nile Tilapia, carp, trout, and catfish. Fish farmers should prioritize quality concerns post-harvest to ensure safety and conforming products, reduce losses and extend shelf-life. Optimal frozen storage conditions must be maintained for high-quality and safe products. Further research is required to compare the effect of prolonged freezing and frozen storage on farmed and captured fishes and factors related to fish species, habitat, and food should be considered when optimizing storage conditions
Effects of Different Packaging Methods on the Shelf Life of Cashew Nuts and Kernels
No full textCashew, Anacadium occidentale is a nut crop considered essential simply because it provides food and employment to millions of people in developing nations. It is cultivated mainly for its nut; a very important export commodity. Dried cashew nuts and kernels that are improperly packaged and stored are prone to spoilage and rejections both in local and export markets. This study was conducted to assess the effects of different packaging methods on the quality of cashew nuts and kernel. Two hundred (200) kg of cashew nuts were procured each, from four states, Oyo and Osun (Southwest); Kwara and Kogi (North Central) Nigeria. The nuts were dried using parabolic solar dryer fixed with data logger for three days. One kg sample in three replicates was taken from each State’s lot and analyzed for initial quality parameters using Nut count (NC) and Kernel Output Ratio methods (KOR). Two hundred kilograms kg of dried raw cashew nut (RCN) (10% MC) taken from 50 kg each from across the States were thoroughly mixed and divided into two lots of 100 kg each. The first lot of 100 kg was processed into kernels (PCK) while the remaining 100 kg was used for RCN storage studies. Physical, chemical microbiological and entomological analyses were evaluated on RCN and PCK at 0, 2, 4, 6, 8, 10 and 12 months. RCN was stored using three different types of packaging; Jute bag, paper-lined jute bag and paper-lined carton, while cashew kernels (PCK) were stored using five different types of packaging methods; Polythene, Polythene lined polypropylene, paper lined polyethylene, polythene lined carton and paper lined carton. Paper lined jute bag was the best packaging method for nut storage while, polythene lined polypropylene was the best for kernel storage. Cashew kernels are easily stored in smaller spaces than the nut (ratio 1:5)
Determination of the Nutritive Value of Ceylon Almond (Terminalia catappa) and Butterfly Pea (Clitoria ternatea) Seeds from Sabaragamuwa Region of Sri Lanka
No full textAims: The Global population is increasing at an accelerated rate while food security is moving in towards a negative direction. Therefore, identification and utilization of underutilized food resources are important to attain sustainability. The present study focused on seeds of two underutilized plants namely; Ceylon almond (Terminalia catappa) and Butterfly pea (Clitoria ternatea) as a source of edible oil production and to evaluate nutritional factors of the seed meal for potential application as a food/feed source.
Methodology: The moisture content of the seeds was determined according to the method of AOAC 925.09. The fat content of the seeds was evaluated through the Soxhlet method followed by FAME determination through GC method. The crude protein content of the defatted seed meal was analyzed according to the method of AOAC 991.20 and AOAC 2011.14 procedures was followed to determine the mineral content of the seed meal using ICP-OES.
Results: The study revealed that both of the seeds contained high levels of moisture content and Terminalia catappa seed exhibited the highest moisture content (30.0%). The seeds of Terminalia catappa contained 18.08% of fat and major fatty acid was palmitic. The crude protein content of defatted seeds of T. catappa was 35.11% and it had a high level of potassium (K) according to the ICP-OES analysis. Clitoria ternatea seed oil contained the least amount of fat (10.8%) and the major fatty acid was oleic (50.87%); an unsaturated fatty acid. The seed meal of it contained 50.16% of crude protein and major minerals were potassium, magnesium, and calcium.
Conclusion: The C. ternatea seed meal is an excellent source of protein. However, seeds contain relatively low level of fat compared to T. catappa seeds. Both seed meals are good source of minerals
Effects of Bran and Hull Retention on the Sensory and Nutrients Composition of “Ogi Flour” Prepared from Maize, Millet and Sorghum
No full textThe effect of Bran and Hull retention on the sensory and nutrient composition of “Ogi flour prepared from maize, millet are sorghum were investigated. The maize and sorghum were soaked for 72 hours, while the millet was soaked for 48 hours, decanted, washed and wet milled into a paste which was oven dried at 50°C for 24 hours and milled into fine flour. The proximate composition, functional properties, pasting properties of the “Ogi” flour was determined as well as evaluating the sensory properties. The moisture content, ash, fat, crude fibre, protein and carbohydrate respectively ranged thus: 2.63 – 8.67%, 1.13 – 1.41%, 4.57 – 7.20%, 1.30 – 5.75%, 4.27 – 7.87% and 75.84 – 82.88%. The presence of Bran and Hulls led to a decrease in moisture content, on increase in ash fat and protein content with decrease in carbohydrate values. The bulk density, water absorption capacity, swelling power and solubility respectively ranged as follows: 0.56 – 0.61g/ml, 1.00 – 2.00g/g, 5.50 – 6.95g/g, 16.10 – 24.40% the presence of Bran led to a decrease in bulk density in maize and millet ogi, a decrease in water absorption capacity in millet and sorghum ogi. The pastry properties of peak, trough breakdown, final and setback viscosities showed a decrease in values from the control samples values for peak time died not differ significantly (P<0.05) between the sieved and unseived ogi flours. While the presence of Bran and Hulls increased pasting temperature in maize and sorghum ogi flours. Result for sensory evaluation showed the control samples were the most preferred for all the attributes. This study revealed that ogi flour can be prepared with a by-pass of the sieving process to enhance nutrient retention