scholarly journals Influence of Sprouting on Proximate and Sensory Properties of Gworo (Cola nitida) and Ojigbo (Cola acuminata) Kola Nuts

2018 ◽  
Vol 2 ◽  
pp. 29-36
Author(s):  
Innocent N. Okwunodulu ◽  
S.C. Ukeje
Keyword(s):  
Moisture Content ◽  
Ambient Temperature ◽  
Proximate Composition ◽  
Sensory Attributes ◽  
Sensory Properties ◽  
Protein Fiber ◽  
Before And After ◽  
Cola Nitida ◽  
Cola Acuminata ◽  
General Acceptability

Influence of sprouting on proximate and sensory properties ofgworo(oji-housa) (Colanitida) andojigbo(Colaacuminate) kola nuts were explored. The two varieties of kola nuts were sprouted at ambient temperature (25 to 32°C) for 4 weeks separately in a regularly moistened serviette wrapped with black polyethylene. Both proximate and sensory properties were conducted before and after sprouting on the mash prepared separately from them. Proximate composition showed that moisture content, ash and protein increased, while fat, crude fiber and carbohydrate decreased with sprouting in both varieties of kola nuts. Sproutedojigbokola nut had higher moisture content (56.80%), ash (2.25%), and fat (2.90%) than sproutedgworowith respective 50.18%, 1.90% and1.40% for moisture, ash and fat. Also, un-sproutedojigbohad higher moisture (47.00%), ash (2.03%) and fat (6.44%) as against respective 43.10%, 1.50% and 4.44% from un-sproutedgworofor moisture, ash and fat. Un-sproutedgworohad higher protein (5.95%), fiber (7.27%) and carbohydrate (37.75%) as against 5.33%, 6.80% and 32.42% from un-sproutedojigbokola nut for protein, fiber and carbohydrate. Similarly, sproutedgworohad higher protein (6.65%), fiber (6.60%) and carbohydrate (32.65%) than respective 6.30%, 5.30% and 26.45% from sproutedojigbo. Sensory scores showed that sprouting reduced all the sensory attributes evaluated in bothgworoandojigbo.Colour was reduced from 6.60 to 5.50 and 5.85 to 5.65 respectively in un-sproutedgworoand sproutedojigbo.Also, crispness was reduced from 6.55 to 5.95 and 6.55 to 5.45 respectively from un-sproutedgworoand sproutedojigbokola nuts. Bitterness was reduced from 6.05 to 5.85 and 6.40 to 5.25 respectively from un-sproutedgworoto sproutedojigbo. Similarly, general acceptability was reduced from 6.55 to 5.35 in un-sproutedgworoand sproutedojigbowhile acceptability reduction of 6.10 to 5.40 was obtained in un-sprouted and sproutedojigbokola nuts respectively.

scholarly journals Effect of Ginger and Cinnamon on the Proximate Composition and Sensory Properties of Corn Ogi

2020 ◽  
pp. 78-85
Author(s):  
N. J. T. Emelike ◽  
A. E. Ujong ◽  
S. C. Achinewhu
Keyword(s):  
Moisture Content ◽  
Proximate Composition ◽  
Nutritional Quality ◽  
Crude Protein ◽  
Control Sample ◽  
Sensory Attributes ◽  
Sensory Properties ◽  
Crude Fiber ◽  
Standard Methods

Objective: Ogi is a fermented cereal gruel produced from maize, sorghum or millet. The objective of the study was to investigate the effect of ginger and cinnamon on the proximate composition and sensory properties of corn ogi. Methodology: Ogi slurry was prepared from corn and fortified with 5% ginger, 5% cinnamon, 5% ginger: 5% cinnamon and 2.5% ginger: 2.5% cinnamon spices and 100% corn ogi as control. The samples were analyzed for proximate composition and sensory properties using standard methods. Results: The results obtained from this study indicated that there was an increase in the moisture, ash, protein and fat contents of corn ogi spiced with ginger and cinnamon and a decrease in carbohydrate content. These increases were observed to be significant (p<0.05) with corn ogi samples spiced with ginger than for cinnamon except for crude fiber which was higher in ogi spiced with cinnamon. Moisture content of the ogi samples ranged from 8.53-9.79%, crude protein 5.13-6.37%, ash 0.19-0.30%, crude fiber 0.29-0.81%, carbohydrate 78.93-81.64% and energy contents 387.77-391.98 kcal. The inclusion of cinnamon and ginger had no significant (p<0.05) effect on the sensory properties of the unsweetened spiced ogi samples. Mean scores obtained for unsweetened ogi samples were low. Upon sweetening with sugar, these scores were increased for all sensory attributes. Sensory evaluation of sweetened ogi samples showed that the control sample was more preferred for all sensory attributes and this was followed closely by sample ogi spiced with 5% ginger. Conclusion: This study recommends the use of ginger at 5% for the fortification of corn ogi which will result in ogi with sensory properties similar to 100% corn ogi. It also showed the potential of fortifying corn ogi with ginger and cinnamon, either singly or as a blend, to enhance the nutritional quality of corn ogi.

scholarly journals Changes in Physicochemical, Microbiological, and Sensory Properties of Sun-Dried Mystus vittatus During Storage at Ambient Temperature

Fishes ◽  
2018 ◽  
Vol 3 (3) ◽  
pp. 32
Author(s):  
Bhaskar Chandra Majumdar ◽  
Faria Afrin ◽  
Md. Golam Rasul ◽  
Dinesh Chandra Shaha ◽  
A.K.M. Azad Shah
Keyword(s):  
Moisture Content ◽  
Ambient Temperature ◽  
Ph Value ◽  
Storage Period ◽  
Sun Exposure ◽  
Sensory Properties ◽  
Human Consumption ◽  
Mystus Vittatus ◽  
Significant Difference ◽  
Dried Fish

The objective of this study was to investigate the changes in physicochemical, microbiological, and sensory properties of sun-dried Mystus vittatus during storage at ambient temperature. The fish was dried under sun exposure on bamboo mats for 5–6 days until the moisture content reduced to approximately 10–15%. The dried fish was then packed into airtight polyethylene bags and stored at ambient temperature (24 to 29 °C) for 90 days. The physical and sensory properties revealed that the dried fish was acceptable for human consumption for up to 60 days. The pH value slightly decreased from 6.42 to 5.95 during the storage period. The moisture content increased significantly (p < 0.05), while no significant difference was observed for the protein, lipid, and ash contents (on a dry matter basis) with the increase in the storage time. The peroxide value, acid value, and conjugated dienes of the lipids increased significantly during the storage period. The microbial load also increased with the increase in the storage period. The results of this study suggest that the product was slightly oxidized during the storage period and could be stored for up to two months.

Effect of Added Wheat Gluten and Mixing Time on Physical and Sensory Properties of Spent Fowl Restructured Steaks

1982 ◽  
Vol 45 (4) ◽  
pp. 297-300 ◽  
Author(s):  
S. C. SEIDEMAN ◽  
P. R. DURLAND ◽  
N. M. QUENZER ◽  
C. W. CARLSON
Keyword(s):  
Moisture Content ◽  
Mixing Time ◽  
Wheat Gluten ◽  
Textural Properties ◽  
Fat Content ◽  
Sensory Attributes ◽  
Sensory Properties ◽  
Cooking Loss ◽  
White Meat

Spent fowl meat (50 % dark/50% white meat) was flaked and formulated to include: (a) no added wheat gluten (control), (b) 1 % wheat gluten and (c) 2% wheat gluten. Each formulation was mixed for 5 min, half was removed and the remainder was mixed an additional 10 min. After mixing, each formulation was pressed into logs, frozen and cut into steaks. Steaks were evaluated for fat and moisture content, cooking loss, textural properties and sensory attributes. Neither addition of wheat gluten nor mixing time had any significant effect on moisture and fat content or total cooking losses. Texture desirability ratings showed a preference for the firmer steaks made with added gluten and mixed for 15 min. These steaks were also rated as being more juicy. Addition of 2% wheat gluten adversely affected flavor desirability.

scholarly journals Handling Time Difference of Weight, Proximate Composition, and Amino Acid on Steamed Crab

2019 ◽  
Vol 22 (1) ◽  
pp. 128-135
Author(s):  
Ruddy Suwandi ◽  
Nurjanah Nurjanah ◽  
Santri Maharani
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Glutamic Acid ◽  
Ambient Temperature ◽  
Proximate Composition ◽  
Handling Time ◽  
Hplc Method ◽  
Weight Changes ◽  
Aquatic Products ◽  
Before And After

Blue swimmer crab (Portunus sp.) is one of the aquatic products which also the member of crustacea with high value as local commodity and export commodity. Weight changes in blue swimmer crabs can occur during handling time and steam process. This research aimed to determine different handling time on weight changes, proximate composition and amino acids of blue swimmer crab (Portunus sp.). The handling times used in this research were 0 hours (J0), 2 hours (J2), 4 hours (J4), 6 hours (J6) conditioned in ambient temperature. Weight lost before and after steam process of blue swimmer crabs showed significant differences in J6. Proximate compositions did not show significant differences in J0 and J6. Amino acids analysis determined by HPLC method and and did not show significant differences in J0 and J6 except for methionine, histidine, arginine, serine, and glutamic acid.

scholarly journals Proximate Composition, Sensory Properties and Microbial Quality of Chin-chin Developed from Wheat and African Walnut Flour Blends for Household Food Security

2020 ◽  
pp. 45-53
Author(s):  
N. J. Deedam ◽  
M. A. China ◽  
H. I. Wachukwu
Keyword(s):  
Food Security ◽  
Wheat Flour ◽  
Proximate Composition ◽  
Sensory Attributes ◽  
Sensory Properties ◽  
Household Food Security ◽  
Microbial Quality ◽  
Household Food ◽  
Flour Blends

Objective: The objective of this study was to investigate the proximate composition, sensory properties and microbial quality of chin-chin developed from wheat and African walnut flour blends as a means of achieving household food security. Methodology: African walnut was processed into flour. Chin-chin was prepared from blends of wheat and African walnut flours using 90:10, 80:20, 70:30, 60:40, 50:50 of wheat flour to African walnut flour (AWF), and 100% wheat flour as control. Samples were subjected to sensory evaluation within 30 min of production. Proximate analysis was carried out using standard methods. The samples were also stored for 3 weeks and evaluated at weekly intervals for total bacterial and fungal counts. Results:  composition of the chin-chin revealed a significant (p<0.05) increase in ash (0.42-1.38%), fat (34.39-40.03%), crude protein (5.53-7.95% protein), crude fibre (0.98-1.86%), and energy contents (402.65-414.08kcal) with a decrease in moisture (3.31-4.85%) and carbohydrate (45.59-53.84%) . Sensory analysis of the chin-chin showed that the control chin-chin was more preferred than all other samples. This was followed closely by chin-chin substituted with 10% African walnut flour having mean scores above 6 for all sensory attributes. Total bacterial counts (TBCs) and fungal counts (TFCs) of the chin-chin samples were observed to increase during storage. TBCs and TFCs of chin-chin samples after 3 weeks of storage ranged from 6.00×103-8.50×103cfu/g and 6.80×103-8.00×103cfu/g, respectively. The samples presented adequate microbiological conditions and were within recommended safe limit of microbial guidelines. Conclusion: The findings of the study showed that chin-chin of acceptable sensory attributes and improved nutritional content could be produced with up to 10% African walnut flour (AWF) level. In effect, chin-chin substituted with African walnut flour can be consumed by households thereby improving their nutritional status and eradicating food insecurity and malnutrition which is common among households.

scholarly journals Proximate, Micronutrient Composition, Physical and Sensory properties of Cookies Produced from Wheat, Sweet Detar and Moringa Leaf Flour Blends

2018 ◽  
Vol 6 (3) ◽  
pp. 690-699
Author(s):  
BIBIANA IGBABUL ◽  
MICHAEL DAMILOLA OGUNRINDE ◽  
JULIUS AMOVE
Keyword(s):  
Vitamin C ◽  
Moisture Content ◽  
Physical Properties ◽  
Proximate Composition ◽  
Beta Carotene ◽  
Ash Content ◽  
Composite Flours ◽  
Flour Blends ◽  
Calcium Iron ◽  
General Acceptability

Cookies were produced from fermented sweet detar, Moringa leaf and wheat composite flours. The proximate composition of the cookies were determined as well as the physical properties, micronutrient composition (mineral and vitamins) and sensory attributes of the cookies. The result showed that moisture content varied from 10.89 – 13.10%, protein content ranged from 6.21 – 8.43%, ash content varied from1.96 to 3.83%, fat content ranged from 19.50 – 23.33%, fibre content ranged from 2.05 to 3.96%, and carbohydrate content decreased from 57.94 – 47.59%. The beta-carotene and vitamin C content ranged from 0.00mg/100g – 119.17mg/100g and 2.00mg/100g – 19.38mg/100g. Calcium, Iron, Zinc and Potassium contents ranged from 21.26–86.12mg/100g, 2.10–2.80mg/100g, 0.91–0.99mg/100g and 89.46–234.29mg/100g. The values of the diameter, weight and thickness of the cookies ranged from 4.46-4.52cm, 14.40-14.95g and 0.84 – 0.99cm.The sensory scores for appearance (4.20–8.26), aroma (4.46–7.60), crispness (4.86–7.33), taste (4.40–7.60), texture (5.33–7.46) and general acceptability (4.66 – 8.13) were recorded. Based on the parameters analyzed, fermented sweet detar , moringa leaf and wheat composite flours could be used in the production of nutritious and acceptable cookies.

STUDY ON DEVELOPMENT OF PASTA PRODUCT WITH INCORPORATION OF OCIMUM SANCTUM (BASIL) TO ENHANCE THE SENSORY AND NUTRITIONAL QUALITY

2018 ◽  
Vol 24 (2) ◽  
Author(s):  
PIYUSH MISHRA ◽  
DEVENDRA KUMAR BHATT
Keyword(s):  
Ambient Temperature ◽  
Shelf Life ◽  
Nutritional Quality ◽  
Leaf Extract ◽  
Storage Stability ◽  
Natural Antioxidants ◽  
Sensory Properties ◽  
Ocimum Sanctum ◽  
Leaf Powder

Pasta was prepared by incorporation of Ocimum sanctum (Basil) for better textural and sensory properties. The pasta was incorporated with the leaf extract of Ocimum sanctum at different concentrations of control, 5, 10, and 15.The natural antioxidants present in the O. sanctum leaf powder that was incorporated in the fruit leather showed extended shelf-life over three months when compared with control, without any added preservative at ambient temperature. Also the nutritional stability of the product was studied under two flexible packages of polypropylene and polyester out of that the products packed in polypropylene showed better storage stability .

CATFISH DRYING (Clarias Batraclus) USING ‘TEKO BERSAYAP’ SOLAR DRYER

2012 ◽  
Vol 2 (1) ◽  
pp. 14-20
Author(s):  
Yuwana Yuwana
Keyword(s):  
Relative Humidity ◽  
Moisture Content ◽  
Ambient Temperature ◽  
Drying Rate ◽  
Drying Process ◽  
Drying Time ◽  
Ambient Relative Humidity ◽  
Solar Dryer

Experiment on catfish drying employing ‘Teko Bersayap’ solar dryer was conducted. The result of the experiment indicated that the dryer was able to increase ambient temperature up to 44% and decrease ambient relative humidity up to 103%. Fish drying process followed equations : KAu = 74,94 e-0,03t for unsplitted fish and KAb = 79,25 e-0,09t for splitted fish, where KAu = moisture content of unsplitted fish (%), KAb = moisture content of splitted fish (%), t = drying time. Drying of unsplitted fish finished in 43.995 hours while drying of split fish completed in 15.29 hours. Splitting the fish increased 2,877 times drying rate.

scholarly journals Effect of wood biomass components on self-heating

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Nozomi Miyawaki ◽  
Takashi Fukushima ◽  
Takafumi Mizuno ◽  
Miyao Inoue ◽  
Kenji Takisawa
Keyword(s):  
Moisture Content ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Chemical Oxidation ◽  
Spontaneous Ignition ◽  
Emission Spectrometry ◽  
Inductively Coupled ◽  
Self Heating ◽  
Inorganic Substances ◽  
Before And After

AbstractBiomass may ignite due to biological oxidation and chemical oxidation. If this phenomenon (spontaneous ignition) is controlled, it would be possible to produce biochar at a lower cost without the need for an external heat resource. We investigated if self-heating could be controlled by using sawdust and bark chips. When sawdust and bark chips were used under controlled conditions, the bark chips temperature increased to the torrefaction temperature. The ash content of bark chips was ~ 2%d.b. higher than that of sawdust; consequently, the inorganic substances contained in the bark chips might affect the self-heating. Self-heating was suppressed when inorganic substances were removed by washing with water. Therefore, the inorganic substances in the biomass might have affected self-heating. The inorganic element contents of the bark chips were measured by inductively coupled plasma optical emission spectrometry before and after washing. The potassium content of the bark chips was reduced remarkably by washing, and there was a possible influence of potassium on self-heating. Finally, the effect of moisture content on self-heating was investigated to obtain stable reactivity. Thus, at a moisture content of 40%w.b., a steady self-heating behavior may be realized.

scholarly journals Amelioration of Smoke Taint in Cabernet Sauvignon Wine via Post-Harvest Ozonation of Grapes

Beverages ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. 44
Author(s):  
Margherita Modesti ◽  
Colleen Szeto ◽  
Renata Ristic ◽  
WenWen Jiang ◽  
Julie Culbert ◽  
...  
Keyword(s):  
Sensory Attributes ◽  
Sensory Properties ◽  
Ozone Treatment ◽  
Cabernet Sauvignon ◽  
Negative Effects ◽  
Volatile Phenols ◽  
Post Harvest ◽  
Perceived Intensity ◽  
Wine Composition ◽  
Marker Compounds

Strategies that mitigate the negative effects of vineyard exposure to smoke on wine composition and sensory properties are needed to address the recurring incidence of bushfires in or near wine regions. Recent research demonstrated the potential for post-harvest ozonation of moderately smoke-exposed grapes to reduce both the concentration of smoke taint marker compounds (i.e., volatile phenols and their glycosides) and the perceived intensity of smoke taint in wine, depending on the dose and duration of ozone treatment. The current study further evaluated the efficacy of ozonation as a method for the amelioration of smoke taint in wine by comparing the chemical and sensory consequences of post-harvest ozonation (at 1 ppm for 24 h) of Cabernet Sauvignon grapes following grapevine exposure to dense smoke, i.e., ozone treatment of more heavily tainted grapes. Ozonation again yielded significant reductions in the concentration of free and glycosylated volatile phenols—up to 25% and 30%, respectively. However, although the intensities of smoke-related sensory attributes were generally lower in wines made with smoke-exposed grapes that were ozonated (compared to wines made with smoke-exposed grapes that were not ozonated), the results were not statistically significant. This suggests that the efficacy of ozone treatment depends on the extent to which grapes have been tainted by smoke.

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