Issue 2 (198)/2024

CHARACTERISATION OF MACRO-PLASTIC WASTE ALONG THE PHILIPPINES’ LONGEST COASTAL BOULEVARD: BASIS FOR SOLID WASTE MANAGEMENT AND POLICY FORMULATION

By: Lucy O. ELEP JR. and Maria Cristina C. AZUELO

Download
Abstract

ABSTRACT

This study focused on the characterisation of macro-plastic waste in terms of types and quantities along the Philippines’ longest coastal boulevard, considering density and cleanliness as a basis for solid waste management and policy formulation. Macro-plastic identification and counting were conducted in four (4) municipalities and eight (8) barangays using the standing stock survey method. There were six (6) types of macro-plastic waste, with the highest quantity consisting of beverage (37.2%) and food packaging (30.5%), followed by fishing gear (17.0%), plastic utensils (9.2%), toiletries (4.8%) and household wastes (1.4%). The computed overall density from a total of 3,978 macro-plastic waste items over 12,000 m2 of beach area sampled was 0.3 (CM), meaning there were 0.3 litter items of plastic per m2 throughout the whole boulevard. The computed overall beach cleanliness was 6.6, which means that the cleanliness status is moderate. Overall, most macro-plastic waste is generated by locals or visitors. In conclusion, a policy regulating the use, littering, and carrying of plastic along boulevards is recommended to prevent plastic pollution considering the province’s growing ecotourism and the future expansion of the coastal boulevard.

Keywords:

coastal road; ecotourism; social plastic.

Cite

CITE

ALSE and ACS Style
Elep Jr., L.O.; Azuelo, M.C.C. Characterisation of macro-plastic waste along the Philippines’ longest coastal boulevard: basis for solid waste management and policy formulation. Journal of Applied Life Sciences and Environment 2024, 57, 183-196.
https://doi.org/10.46909/alse-572131

AMA Style
Elep Jr. LO, Azuelo MCC. Physiological particularities of maize plants and the effect of some antioxidants under conditions of moderate drought. Journal of Applied Life Sciences and Environment. 2024; 57 (1): 183-196.
https://doi.org/10.46909/alse-572131

Chicago/Turabian Style
Elep Jr, Lucy O, and Maria Cristina C. Azuelo. 2024. “Physiological particularities of maize plants and the effect of some antioxidants under conditions of moderate drought” Journal of Applied Life Sciences and Environment 57, no. 1: 183-196.
https://doi.org/10.46909/alse-572131

EFFECT OF OKORO [(Albizia zygia (J.F.) Macbr)] LEAFY BIOMASS AND NPK FERTILISER ON THE GROWTH AND YIELD OF SWEET PEPPER (Capsicum annum L.)

By: Adams Latif MOHAMMED

Download
Abstract

ABSTRACT

Agricultural productivity and sustainable crop management are pivotal aspects of global food security and economic stability. The quest for efficient and environmentally friendly practices in crop production has led to a surge in research exploring the utilisation of organic materials alongside conventional fertilisers to enhance crop growth and yield. An experiment was conducted over a growing period of three months, starting in August 2023 at the research field of Kwame Nkrumah University of Science and Technology, Kumasi-Ghana, to investigate the effects of Albizia zygia leafy biomass in combination with NPK fertiliser on the growth and yield of sweet pepper (Capsicum annum L.). A randomised complete block design was employed with four treatment groups replicated four times, including various combinations of A. zygia leafy biomass and NPK fertiliser, alongside control groups of sole fertiliser application and untreated plots (T1). The treatments were as follows: T1 = No biomass, no NPK (control); T2 = 0.5348 kg of A. zygia leafy biomass per 4.86 m2 (1100.5 kg/ha of A. zygia leafy biomass); T3 = 0.2463 kg of NPK per 4.86 m2 (506.7 kg/ha of NPK); and T4 = 0.2674 kg of A. zygia leafy biomass per 4.86 m2 + 0.1231 kg of NPK (550.3 kg/ha of A. zygia leafy biomass + 253.4 kg/ha of NPK). The assessed parameters were plant height, number of leaves, number of branches, fruit yield and fresh fruit weight. Significant variations (p ˂ 0.05) were observed in the growth parameters (plant height, number of leaves, number of branches) and yield attributes (fruit yield and fresh fruit weight) of sweet pepper among the treatments. The combined application of A. zygia leafy biomass and NPK fertiliser (T4) exhibited increased effects on plant height, number of leaves, number of branches, fruit yield and fresh fruit weight compared to individual treatments and control groups (p ˂ 0.05). Notably, the treatment combining A. zygia leafy biomass and NPK fertiliser (T4) demonstrated a substantial increase in plant height (44.58 cm), a significant improvement in the number of leaves (42.98) and a remarkable enhancement in the number of branches (11.33) compared to the sole applications and the control group. Furthermore, the combined treatment significantly increased (p ˂ 0.05) the yield parameters, including fruit yield and fresh fruit weight per hectare, showcasing an increase of 8796/ha and 23.91 t/ha, respectively, compared to sole fertiliser application and the control. The findings from this study demonstrated that the incorporation of A. zygia leafy biomass, either solely or in combination with NPK fertiliser, positively impacted the growth and yield of sweet pepper plants. These results highlight the potential of A. zygia leafy biomass as a valuable organic amendment for sustainable and enhanced crop production, offering promising implications for agricultural practices aimed at improving yield and plant growth.

Keywords:

Albizia zygia; Capsicum annum (L.); NPK fertiliser; organic amendment; sweet pepper.

Cite

CITE

ALSE and ACS Style
Mohammed, A.L. Effect of okoro [(Albizia zygia (J.F.) Macbr)] leafy biomass and NPK fertiliser on the growth and yield of sweet pepper (Capsicum annum L.). Journal of Applied Life Sciences and Environment 2024, 57, 197-216.
https://doi.org/10.46909/alse-572132

AMA Style
Mohammed AL. Effect of okoro [(Albizia zygia (J.F.) Macbr)] leafy biomass and NPK fertiliser on the growth and yield of sweet pepper (Capsicum annum L.). Journal of Applied Life Sciences and Environment. 2024; 57 (2): 197-216.
https://doi.org/10.46909/alse-572132

Chicago/Turabian Style
Mohammed, Adams Latif. 2024. “Effect of okoro [(Albizia zygia (J.F.) Macbr)] leafy biomass and NPK fertiliser on the growth and yield of sweet pepper (Capsicum annum L.)” Journal of Applied Life Sciences and Environment 57, no. 2: 197-216.
https://doi.org/10.46909/alse-572132

A NEW NATURAL FOOD DYE: MICROENCAPSULATED CORNELIAN CHERRY BIOACTIVE COMPOUNDS

By: Iuliana-Maria ENACHE, Liliana LUCESCU CIURLĂ, Nicoleta STĂNCIUC, Antoanela PATRAȘ, Camelia VIZIREANU and Liviu Mihai IRIMIA

Download
Abstract

ABSTRACT

Cornus mas (CM) is one of the four edible fruits of the Cornus genus, a rich source of biologically active compounds (BACs) such as vitamins (like vitamin C), carotenoids, iridoids, and phenolics (phenolic acids, anthocyanins, and other flavonoids). This study aimed to analyse the improvement of the stability of CM anthocyanins by microencapsulation, in order to propose a new natural food dye. Microencapsulation using a mixture of whey protein isolate (WPI) and chitosan (CH) as wall materials has been applied to protect anthocyanins against external factors (e.g., light, temperature, storage, etc.). Two experimental variants of microencapsulated powders, WPI:CH = 1:1 (CH1) and WPI:CH = 1:2 (CH2), were realised by varying the wall materials ratio. The cornelian cherry fruit concentrated extract was evaluated for its phytochemical, colourimetric, and antioxidant capacities. Due to the excellent anthocyanin encapsulation effectiveness (74.29 – 88.71%), the wall materials utilised for both powders can be considered effective choices to safeguard the anthocyanins. All tests performed on the microencapsulated powders demonstrated that both suggested experimental forms can serve as a healthy substitute for artificial food additives. The incorporation of cornelian cherry fruit extract and microencapsulated powders into a food matrix (jelly candies) allowed examination of their effectiveness. The colour analysis rigorously characterised all the colour parameters related to red nuances (due to anthocyanins content, such as cyanidin-3-glucoside) and yellow nuances (associated with carotenoids content).

Keywords:

chitosan; jelly candies; natural pigments; phenolic compounds; whey protein isolate.

Cite

CITE

ALSE and ACS Style
Enache, I.-M.; Lucescu Ciurlă, L.; Stănciuc, N.; Patraș, A.; Vizireanu, C.; Irimia, L.M. A new natural food dye: microencapsulated cornelian cherry bioactive compounds. Journal of Applied Life Sciences and Environment 2024, 57, 217-232.
https://doi.org/10.46909/alse-572133

AMA Style
Enache I-M, Lucescu Ciurlă L, Stănciuc N, Patraș A, Vizireanu C, Irimia LM. A new natural food dye: microencapsulated cornelian cherry bioactive compounds. Journal of Applied Life Sciences and Environment. 2024; 57 (2): 217-232.
https://doi.org/10.46909/alse-572133

Chicago/Turabian Style
Iuliana-Maria Enache, Liliana Lucescu Ciurlă, Nicoleta Stănciuc, Antoanela Patraș, Camelia Vizireanu, and Liviu Mihai Irimia. 2024. “A new natural food dye: microencapsulated cornelian cherry bioactive compounds” Journal of Applied Life Sciences and Environment 57, no. 2: 217-232.
https://doi.org/10.46909/alse-572133

RESPONSE OF SWEET CORN VARIETIES TO PLANT DENSITY AND TILLER REMOVAL: PRELIMINARY STUDIES

By: Răzvan HUȚULIAC, Cristina PRECUPEANU, Ionela Cătălina VASILACHI, Alexandru COJOCARU, Mihaela ROȘCA and Vasile STOLERU

Download
Abstract

ABSTRACT

The sweet corn breeding strategy aims to enhance and sustain a consistent yield over time. The interaction between density and tiller removal is currently being discussed among sweet corn farmers, as well as scientists working in sweet corn. Considering the studies carried out to date and the research directions suggested by them, the present study aimed to determine the impact of plant density, variety, tiller removal and their interactions on the yield and ear prolificacy/weight of sweet corn under the climatic conditions of northeast Romania. The experiments were focused on 3 sweet corn varieties (Deliciosul de Bacău, Deliciul verii and Royalty F1), sown at 3 densities (50k, 60k and 70k plants/ha) and considering 2 variants for tiller removal (tiller removal / without tiller removal). The highest yield of sweet corn was recorded in the Royalty F1 hybrid in the plots in which the tillers were removed (24.27 t/ha). The Royalty F1 hybrid also had the heaviest ears (313.33 g) in plots with tiller removal and 60k plants/ha. Overall, the most favourable plant density in terms of yield was 60k plants/ha. The experimental results showed that in the climatic conditions of northeast Romania, tiller removal led to increased yield, especially in the Deliciosul de Bacău hybrid. Tiller removal in this hybrid resulted in a significant increase in yield (from 18.41 to 23.08 t/ha).

Keywords:

plant density; sweet corn variety; tillers impact; yield.

Cite

CITE

ALSE and ACS Style
Huțuliac, R.; Precupeanu, C.; Vasilachi, I.C.; Cojocaru, A.; Roșca, M.; Stoleru, V. Response of sweet corn varieties to plant density and tiller removal: preliminary studies. Journal of Applied Life Sciences and Environment 2024, 57, 233-247.
https://doi.org/10.46909/alse-572134

AMA Style
Huțuliac R, Precupeanu C, Vasilachi IC, Cojocaru A, Roșca M, Stoleru V. Response of sweet corn varieties to plant density and tiller removal: preliminary studies. Journal of Applied Life Sciences and Environment. 2024; 57 (2): 57, 233-247.
https://doi.org/10.46909/alse-572134

Chicago/Turabian Style
Huțuliac, Răzvan, Cristina Precupeanu, Ionela Cătălina Vasilachi, Alexandru Cojocaru, Mihaela Roșca, and Vasile Stoleru. 2024. “Response of sweet corn varieties to plant density and tiller removal: preliminary studies” Journal of Applied Life Sciences and Environment 57, no. 2: 57, 233-247.
https://doi.org/10.46909/alse-572134

 

EFFECT OF PRE-EXPOSURE ON THE INSECTICIDAL AND REPELLENCY PROPERTIES OF Citrus paradisi PEEL ESSENTIAL OIL AGAINST Tribolium castaneum

By: Adeyemi O. AKINYEMI, Samuel A. BABARINDE, Habeeb O. ADETUNJI and Oladeji K. ALALADE

Download
Abstract

ABSTRACT

Although the use of essential oils (EOs) for pest control has gained popularity due to their biodegradability and ecological safety, a major concern regarding their use is stability. Therefore, this aspect deserves empirical studies to enable potential end users to adopt research findings on the pesticidal potential of EOs. This research investigated the insecticidal and repellence impacts of Soxhlet-extracted grapefruit peel (Citrus paradisi Macfad. (Rutaceae) Lane) EO pre-exposed to air for 0, 0.5, 1 and 2 h (before introducing insects) on Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae). The ethanol diluents were initially allowed to evaporate for 15 min in all treatments. Contact toxicity was tested on larval and adult stages at 5 and 15% concentrations of the EO, while repellency was tested at a 5% concentration. The impacts of EO on adult behavioural activity were also observed 24 h after exposure. Grapefruit EO was effective in controlling T. castaneum adults and larvae at higher doses. Exposure periods had an immediate significant effect on larvae and adult mortalities 1 and 6 h after the insects were introduced. At a 15% concentration, EO with a 0 h pre-exposure period had significantly higher adult and larva mortalities after 6 h than those of 0.5, 1 and 2 h pre-exposure. Regardless of oil pre-exposure, insects were repelled, especially in test periods between 12 and 30 min. Therefore, grapefruit EO could be formulated for increased stability when an immediate impact is needed.

Keywords:

exposure periods; grapefruit peel; mortality; pest control; toxicity.

Cite

CITE

ALSE and ACS Style
Akinyemi, A.O.; Babarinde, S.A.; Adetunji, H.O.; Alalade, O.K. Effect of pre-exposure on the insecticidal and repellency properties of Citrus paradisi peel essential oil against Tribolium castaneum. Journal of Applied Life Sciences and Environment 2024, 57, 249-263.
https://doi.org/10.46909/alse-572135

AMA Style
Akinyemi AO, Babarinde SA, Adetunji HO, Alalade OK. Effect of pre-exposure on the insecticidal and repellency properties of Citrus paradisi peel essential oil against Tribolium castaneum. Journal of Applied Life Sciences and Environment. 2024; 57 (2): 57, 249-263.
https://doi.org/10.46909/alse-572135

Chicago/Turabian Style
Akinyemi, Adeyemi O., Samuel A. Babarinde, Habeeb O. Adetunji, and Oladeji K. Alalade. 2024. “Effect of pre-exposure on the insecticidal and repellency properties of Citrus paradisi peel essential oil against Tribolium castaneumJournal of Applied Life Sciences and Environment 57, no. 2: 57, 249-263.
https://doi.org/10.46909/alse-572135

This site uses cookies to offer you a better browsing experience. By browsing this website, you agree to our use of cookies.