SAUL Archive
Not a member yet
4890 research outputs found
Sort by
Regulation of eating quality, sensory aroma and 2-acetyl-1-pyrroline biosynthesis in fragrant rice through foliage application of aromatic compounds
No full textThe experiment was conducted at the research area of Sher-e-Bangla Agricultural University from 15 June 2022, to 25 November 2022 (Aman season) to evaluate the impact of aromatic compound application on fragrant rice. The experiment included two factors: factor 1 comprised four rice varieties (BRRI dhan34, BRRI dhan70, BRRI dhan80, and Tulshimala), and factor 2 comprised application of four aromatic compounds (L-proline, α-ketoglutaric acid, γ-aminobutyric acid, and sodium selenite). A randomized complete block design was employed with three replications. Results revealed significant effects of aromatic compound applications and/or rice varieties on grain eating qualities, sensory aroma and 2-acetyl-1-pyrroline, which were superior in Tulshimala and BRRI dhan34. α-Ketoglutaric acid and sodium selenite application improved water uptake ratio, amylose and amylopectin content, alkali spreading value, gel consistency, protein content, sensory aroma score, and kernel stickiness and tenderness of fragrant rice. Moreover, α-ketoglutaric acid application led to enhanced 2-acetyl-1-pyrroline content in Tulshimala and BRRI dhan34. Several eating quality and fragrance parameters were found either positively or negatively correlated. Apparent amylose content exhibited a negative correlation with stickiness of kernel. Sensory aroma and grain 2-AP content were also positively correlated
Assessment of heavy metals and proximate composition in jellyfish (Lobonemoides robustus Stiasny, 1920) collected from Cox's Bazar coast: Human health risk assessment
No full textJellyfish are known for experiencing periodic blooms in population, which occur when their density increases suddenly. The present study assessed the level of heavy metals and proximate composition in the jellyfish Lobonemoides robustus collected from Cox's Bazar coast of Bangladesh. This is the first study conducted in Bangladesh. Most of the studied metals were not possible to detect in L. robustus samples because concentrations were below the detection limit. Ca, Na, Se, and Mg were found to have safe levels in the L. robustus while the amount of Pb was recorded 0.39 ppm. The findings of Target Hazard Quotient, and Carcinogenic Risk indicate that the L. robustus is safe for human consumption (both for children and adults). Hence, it is suitable for consumption and can be exported. This study emphasizes the need for regular marine environment monitoring to ensure that the seafood harvested from these waters is safe for consumption
Physiological and biomolecular interventions in the bio-decolorization of Methylene blue dye by Salvinia molesta D. Mitch
No full textMethylene blue, a cationic dye as a pollutant is discharged from industrial effluent into aquatic bodies. The dye is biomagnified through the food chain and is detrimental to the sustainability of aquatic flora. Despite of number of physico-chemical techniques of dye removal, the use of aquatic flora for bio-adsorption is encouraged. Thus, we used Salvinia molesta D. Mitch in bio-reduction of methylene blue on concentrations of 0, 10, 20, and 30 mg L-1 through 5 days with biosorption kinetics. The dye removal was concentration-dependent, maximized at 2 days with 30 mg L-1 which altered the relative growth rate (44%) of plants. Biosorption recorded 71% capacity at optimum pH (8.0), 24 h reducing major bond energies of amide, hydroxyl groups, etc. Bioaccumulation of dye changed potassium content (446%) under maximum dye concentration modifying tissues for dye sequestration. Reactive oxygen species were altered on dye reduction by oxidase (33%) with redox homeostasis by enzymes. Plants altered the metabolism with over accumulation of polyamines (51%), abscisic acids (448%), and phosphoenolpyruvate carboxylase (83%) on dye reduction. Thus, this study is rationalized with a sustainable approach where aquatic ecosystems can be decontaminated from dye toxicity with the exercise of bioresources like Salvinia molesta D. Mitch as herein
Foliar application of IAA and GA3 on growth and yield attributes of mungbean (Vigna radiata L. R. Wilczek)
No full textA field experiment was conducted to assess the effects of foliar application of Indole acetic acid (IAA) and Gibberellic acid (GA3) on the growth and yield of mungbean (BARI Mung-6) plants. Nine treatments were administered, including various concentrations of IAA and GA3, applied individually and in combination. The experiment followed a randomized complete block design (RCBD) with three replications, data were recorded on growth and yield parameters at 30 days after sowing (DAS) and at harvest. Results indicated that treatment T8 (IAA 50 mg/l + GA3 50 mg/l) significantly enhanced growth and yield attributes. Notably, T8 exhibited the highest values for plant height (57.50 cm), number of leaves per plant (47.33), number of branches per plant (7.67), chlorophyll content (55, SPAD value), shortest duration to 80% flowering (27.33) with 80% pod maturity (55.33), number of pods per plant (37.67), pod length (14.99 cm), number of seeds per pod (13.78), weight of 1000 seeds (54.95 g), seed yield (1.68 t/ha), biological yield (3.52 t/ha), and harvest index (47.73%). Conversely, the untreated control (T0) exhibited the lowest performance across all parameters. Therefore, foliar application of IAA and GA3, particularly at 50 mg/l concentration each, demonstrated significant improvements in growth, yield, and related attributes of mungbean. Bangladesh J. Bot. 53(3): 459-464, 2024 (September
Domestic Lentil Production in Bangladesh Is More Advantageous Than Using Overseas Imports
No full textThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is
properly cited.Lentils (Lens culinaris), often referred to as the “meat of the poor,” are essential for ensuring food and nutrition security worldwide,
including
in
Bangladesh.
Despite
being
a
staple
food,
Bangladesh
remains
heavily
dependent
on
lentil
imports
to
meet
domestic
demand.
However,
comprehensive
economic
analyses
comparing
domestic
lentil
production
with
imports
are
scarce.
This
study
fills
a critical
research
gap
by
providing
evidence-
based
insights
into
the
financial
and
economic
advantages
of
domestic
lentil
production
over
overseas
imports,
using
primary
data
collected
from
196
farmers
in
central
Bangladesh
between
March
and
April
2022.
The
financial
profitability
analysis
revealed
a total
cost
of
USD
979.13/ha,
generating
a net
profit
of
USD
423.55/ha
and
yielding
a benefit–cost
ratio
of
1.43.
However,
the
economic
profitability
analysis
indicated
a lower
total
cost
of
USD
692.00/ha,
with
a net
profit
of
USD
119.37/ha
and
a benefit–cost
ratio
of
1.17.
Domestic
resource
cost
analysis
revealed
that
local
farmers
enjoyed
a comparative
advantage
in
lentil
production.
Similarly,
the
constructed
policy
analysis
matrix
(PAM)
demonstrated
that,
at
import
parity
prices,
revenue
transfers
were
positive,
affirming
the
economic
viability
of
domestic
lentil
production.
The
estimated
indicators—including
the
nominal
protection
coefficient
on
output,
nominal
protection
coefficient
on
input,
effective
protection
coefficient,
and
private
cost
ratio—suggest
that
existing
policies
effectively
safeguard
the
interests
of
domestic
farmers.
To
capitalize
on
this
comparative
advantage,
measures
should
be
implemented
to
encourage
farmers
to
expand
lentil
cultivation.
Additionally,
further
research
is
essential
to
develop
and
integrate
improved
short-
duration
lentil
varieties
within
the
prevailing
rice-
dominated
cropping
patterns.This work was supported by the Ministry of Science and Technology (283)
Edibility of cultivated green seaweed Ulva intestinalis from Monkhali Beach, Cox’s Bazar coast of Bangladesh: bio-toxicity and heavy metal contents
No full textUlva intestinalis (UI) is widely available edible seaweed and has potential to be introduced as functional
food items in Bangladesh. However, potential health hazards of this seaweed with biotoxicity assays
and its relation to heavy metal contents were not evaluated previously. With these objectives, toxic
effects of UI collected from floating raft culture in Monkhali Beach was evaluated using various
organisms such as Chlorella vulgaris, Artemia salina, Daphnia magna, and Lactuca sativa. In relation
to this effects, heavy metal concentrations (Fe, Cr, Ni, Cu, Zn, Pb, Cd, and As) and its potential health
hazards were subsequently analyzed. The results showed that UI water extract had positive effects on
the survivability and growth of the all-test organisms over different time periods, with minimal LC50
values, indicating no toxic to tested organisms. However, increased levels of total dissolved solids and
electrical conductivity were observed as extract concentrations increased but considered to be safe
below 5 mg kg
−1
, as compared to control. Moreover, Fe, Cr, Ni, Cu and Zn (43.60, 0.10, 0.44, 0.07, 0.27
and 0.13 mg kg
−1
of dry weight, respectively) in UI were found to be low levels compared to previous
studies, in addition, Cd and As remained not detected. No significant health risk (HQ < 1) and target
carcinogenic risk were found. Therefore, UI could be utilized as functional foods or nutraceuticals for
health-conscious consumers of Bangladesh without having potential risks
Role of Plants in Fluorides and Fluorocarbons Toxicity Remediation
No full textThe exposure of fish to heavy metals is a significant concern for human health and natural ecosystems. Despite being a critical issue, the extent of contamination in tropical fish from developing countries like Bangladesh remains somewhat unexplored. In this study, ten economically vital fish species (Osteogeneiosus militaris, Arius gagora, Harpadon nehereus, Mugil ephalus, Pseudapocryptes elongates, Apocryptes bato, Labeo bata, Tenualosa toil, Notopterus notopterus, and Pampus chinensis) from the Pasur River, Bangladesh, were analyzed by atomic absorption spectrometer for the concentrations of four concerned heavy metals, viz., As, Cr, Cd, and Pb, and the associated human health risks. The mean concentrations (mg/kg) followed the order of As (3.30 ± 1.43) > Pb (2.32 ± 0.73) > Cr (0.63 ± 0.29) > Cd (0.37 ± 0.24). Additionally, the bioaccumulation factor of the metals in the investigated fish species followed a decreasing trend of As (824.75) > Cr (781.25) > Cd (744) > Pb (385.83). While most species fell below the minimum bioaccumulation line, a few exceptions were noted for some species specific to metals. Health risk assessments indicated no significant carcinogenic and non-carcinogenic risks for both children and adults, although children exhibited greater vulnerability to both types of health effects. Multivariate analysis and local perceptions supported the conclusion that heavy metals primarily originated from anthropogenic sources related to development activities adjacent to the riverine areas
Retrospective case study of livestock diseases recorded at Fulbaria upazila veterinary hospital in Mymensingh district of Bangladesh
No full textThe present study was undertaken to find out the suspected livestock cases
recorded in upazila veterinary hospital from October 1, 2021, to November
30, 2022. The data were collected from the registered book that was
maintained at the upazila livestock office. We found that cattle, goats,
chickens, ducks, and pigeons were common livestock species taken to
veterinary hospitals. We also found that clinical cases of animals were
treated based on clinical history, clinical signs, and physical examination
and diseases were grouped as infectious and non-infectious diseases in
cattle and goats, diseases of chicken, duck, and pigeons. The relative ratio
of occurrence of lumpy skin diseases and peste des petitis ruminants was
high among other infectious diseases in cattle and goats respectively. By
contrast, the relative ratio of occurrences of non-infectious bloat was high
among other non-infectious diseases in cattle and goats. We also found that
clinical cases in poultry were treated based on clinical history, clinical signs,
physical examination, and postmortem examination and were grouped as
diseases in chickens, ducks, and pigeons. The relative ratio of occurrences
of visceral gout, duck viral enteritis, and pigeon pox was high among other
diseases in chicken, duck, and pigeon, respectively, during the study period.
In summary, the findings have indicated the various clinical cases,
diagnoses, treatment approaches, and incidence in livestock species at
Fulbaria Upazila Veterinary Hospital of Mymensingh district of Bangladesh
Comparative assessment of indoor air quality and comfort parameters in government and non-government hospitals in southwestern Bangladesh
No full textIndoor air quality (IAQ) is considered crucial in the hospital environment for the health improvement of the patients and the well-being of all the staff and visitors. Despite that, in a lot of hospitals in developing and underdeveloped countries, IAQ is severely impaired by different factors. The lower-income people are mostly dependent on the government-subsidized public hospital, and that necessarily creates a huge number of patients and gatherings and results in impaired IAQ. In this study, nine hospital wards were selected from one public and one private hospital in the southwestern part of Bangladesh to compare the IAQ with respect to the outdoor values. Five IAQ parameters (PM2.5, PM10, VOC, CO2, and HCHO) and three indoor comfort parameters (temperature, relative humidity, and noise) were assessed at three different times of the day (morning, midday, and after noon). The results suggested that PM2.5, PM10, and CO2 were significantly higher in the private hospital units (48.59±12.34µg/m3, 65.27±14.18µg/m3, and 721.13±159.20ppm, respectively) than the public hospital units. In contrast, temperature and relative humidity were found to be slightly lower in the private hospital units (RH: 81.80±1.29%, T: 31.27±1.24 °C) than in the public hospital units. The detected noise level was significantly higher in each hospital's indoor units than the outdoor units. The I/O ratio suggests most contamination sources are indoors for the private hospital units, while the toxicity potential found considerable health implications for those indoor locations
Growth and Yield of Lentil as Influenced by Zinc and Boron Management
No full textA field experiment was conducted at Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh, during the period from November 2021 to March 2022 to evaluate the influence of micronutrients management on growth and yield of two lentil varieties viz., BARI Masur-8 (V1) and Binamasur-8 (V2) and 6 micronutrients management (no fertilizer - F1, recommended fertilizer dose (RFD) (40-90-40-55 Kg ha−1 of urea-TSP-MoP-Gypsum) with 10 Kg ha−1 ZnSO4 as basal - F2, RFD with zinc (Zn) as foliar spray - F3, RFD with Zn and boron (B) as foliar spray - F4, 50% RFD + 50% cow dung (5 t ha−1) - F5 and 50% RFD + 50% cow dung + Zn and B as foliar spray - F6). No significant effect had found for variety except 1000-seed weight but micronutrients management along with interactions significantly effects on all studied parameters of lentil. The higher 1000-seed weight (34.16 g) was recorded in BARI Masur-8. The highest plant height (37.09 cm), number of branches plant−1 (7), dry weight of root plant−1 (159.17 mg), dry weight of shoot plant−1 (3319.33 mg) and number of pods plant−1 (62) was observed at F6 treatment. The highest 1000-seed weight (31.68 g) were recorded at F2 treatment. The highest weight of nodules plant−1 (10.33 mg at 60 DAS), seed yield (2.62 t ha−1), straw yield (2.12 t ha−1) and biological yield (4.74 t ha−1) were found at F3 treatment. The highest plant height (38.45 cm), number of branches plant−1 (7), number of pods plant−1 (63), seed yield (2.91 t ha−1) and harvest index (58.65%) were recorded at V2F6 whereas the highest weight of nodules plant-1 (26 mg), straw yield (2.22 t ha−1) and biological yield (5.02 t ha−1) were found at V1F3 but the highest 1000-seed weight (34.87 g) at V1F1. The highest number of seeds pod−1 (1.83) was found at V2F1. So, two varieties showed similar performance on yield. Foliar application of Zn has the potentiality to increase seed yield. The variety Binamasur-8 with 50% RFD + 50% cow dung + Zn and B (F6) as foliar spray could bring maximum yield (2.91 t ha−1) of lentil followed by treatment F2, F3, and F4. Bangladesh Agron. J. 2024, 26(2): 34-4