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Papers by Asma Maazoun Mami

International Journal of Horticulture, Agriculture and Food science

In recent years, international trade in Maltese half-blood (Citrus sinensis) has increased. The r... more In recent years, international trade in Maltese half-blood (Citrus sinensis) has increased. The rootstock's potential defines the fruit's characteristics in the eco-system where it is developed. As a result, in order to achieve the demands of the Maltese half-blood fruit market, it is critical to understand the effects of the rootstock and its role in fruit and juice quality. The Maltese half-blood was grafted onto four rootstocks and the fruit and juice quality parameters were evaluated. The obtained results revealed that rootstocks have a significant impact on the peel tickness of the fruits, as well as the acidity and total soluble solids of the juices. Indeed, the rootstocks significantly impacted the quality of the fruits and the juices in their environment. It was found that C35 citrange is a good rootstock for Maltese half-blood variety. Therefore, these on-site rootstock evaluation effects should assist local farmers in selecting the best rootstocks for their Maltese...

Recently, there has been worldwide interest in finding new and safe antioxidants from natural sou... more Recently, there has been worldwide interest in finding new and safe antioxidants from natural sources because of their significance in treating various metabolic syndromes and chronic disorders. In this study, we aimed to evaluate the antioxidant potential of Urgineamaritima bulb extract. Numerous in vitro models were used in order to highlight the antioxidant potential of the methanolic extract of U. maritima bulbs. In addition, the effects of U. maritima bulbs extract against α-amylase and acetylcholinesterase activities were explored. Results indicated that U. maritima bulbs extract exhibited a high antioxidant potential in the various invitro systems. Moreover, the investigation of the protective effect of U. maritima bulb extract against induced lipid peroxidation in a biological matrix showed its effective protection. In addition, U. maritima bulb extract revealed an important inhibitory power against α-amylase (IC 50 = 95.03 ± 1.29 µg/mL) and acetylcholinesterase (IC 50 = 72.19 ± 1.48 µg/mL) activities.

Journal of Asia-Pacific Entomology, 2017

Screening for insecticidal potential and acetylcholinesterase activity inhibition of Urginea mari... more Screening for insecticidal potential and acetylcholinesterase activity inhibition of Urginea maritima bulbs extract for the control of Sitophilus oryzae (L.

Interest in botanical insecticides derived from plants has increased as a result of environmental... more Interest in botanical insecticides derived from plants has increased as a result of environmental concerns and insect resistance to chemical insecticides. In this study, we explored the insecticidal activity of Urginea maritima bulbs extract and its inhibitory effect on acetylcholinesterase enzyme system in the rice weevil Sitophilus oryzae (L.) (Coleoptera: Curculionidae). Phytochemical screening and HPLC-ESI/TOF-MS analysis revealed the presence of bioactive molecules with high insecticidal potential. Content of polyphenols (130.88 ± 0.44 mg GAE/g FW), flavonoids (50.81 ± 0.25 mg RE/g FW) as well as alkaloids (12.09 ± 0.16 mg AE/g FW) were high. HPLC-ESI/TOF-MS analysis results demonstrated that ferulic acid (124.19 μg/g FW), vanillic acid (75.84 μg/g FW) and 4-hydroxybenzoic acid (59.73 μg/g FW) were the major phenolic compounds of U. maritima bulbs extract. The toxic potential against the rice weevil using contact and repellent bioassays showed the highest insecticidal potential of U. maritima bulbs extract. The LD 50 , LC 50 and RC 50 values were 19.03 μg/insect, 2.35 μg/cm 2 and 0.009 μg/cm 2 for contact bioassay by topical application, contact bioassay by treated filter paper method and repellent bioassay, respectively. Furthermore, U. maritima bulbs extract inhibited acetylcholinesterase (AChE) activity and median inhibition concentration IC 50 was evaluated to 66.08 μg/ml. The findings of the present investigation confirmed that Urginea maritima may be recommended as an eco-friendly alternative to synthetic insecticides.

Environmental Science and Pollution Research volume, 2019

The main objective of the present study is to introduce a new and ecologically safe method for ma... more The main objective of the present study is to introduce a new and ecologically safe method for managing the rice weevil,
Sitophilus oryzae. Therefore, the Agave americana leaf extract’s phytochemical profile, and its insecticidal activity against the
adults of S. oryzae were evaluated. The A. americana leaf extract was screened for the following phytochemicals: total phenolics
(14.70 ± 0.31 mg GAE/g FW), total flavonoids (5.15 ± 0.18 mg RE/g FW) and saponins (10.32 ± 0.20 mg OAE/g FW). The
HPLC-ESI/TOF-MS analysis results revealed that flavonoid glycosides (kaempferol, quercetin, and isorhamnetin derivates) were
the major phenolic compounds of the A. americana leaf extract. In addition, the GC-MS analysis identified n-alkanes (77.77%) as
significant compounds of the lipophilic fraction from the leaf extract. Moreover, the insecticidal potential was assessed through
contact and repellent bioassays towards the rice weevil adults. The LD50, LC50, and RC50 values were 10.55 μg/insect, 8.99 μg/
cm2, and 0.055 μg/cm2 for topical application method, treated filter-paper method, and repellent bioassay, respectively.
Furthermore, the A. americana leaf extract inhibited digestive enzyme activities, and median inhibition concentrations IC50 were
evaluated to be 146.06 ± 1.74 and 86.18 ± 1.08 μg/mL for α-amylase and protease, respectively. Overall, our results highlighted
the promising potential of the leaf extract against S. oryzae adults, allowing us to recommend the extract under investigation as an
ecofriendly alternative to synthetic insecticides.

International Journal of Horticulture, Agriculture and Food science

In recent years, international trade in Maltese half-blood (Citrus sinensis) has increased. The r... more In recent years, international trade in Maltese half-blood (Citrus sinensis) has increased. The rootstock's potential defines the fruit's characteristics in the eco-system where it is developed. As a result, in order to achieve the demands of the Maltese half-blood fruit market, it is critical to understand the effects of the rootstock and its role in fruit and juice quality. The Maltese half-blood was grafted onto four rootstocks and the fruit and juice quality parameters were evaluated. The obtained results revealed that rootstocks have a significant impact on the peel tickness of the fruits, as well as the acidity and total soluble solids of the juices. Indeed, the rootstocks significantly impacted the quality of the fruits and the juices in their environment. It was found that C35 citrange is a good rootstock for Maltese half-blood variety. Therefore, these on-site rootstock evaluation effects should assist local farmers in selecting the best rootstocks for their Maltese...

Recently, there has been worldwide interest in finding new and safe antioxidants from natural sou... more Recently, there has been worldwide interest in finding new and safe antioxidants from natural sources because of their significance in treating various metabolic syndromes and chronic disorders. In this study, we aimed to evaluate the antioxidant potential of Urgineamaritima bulb extract. Numerous in vitro models were used in order to highlight the antioxidant potential of the methanolic extract of U. maritima bulbs. In addition, the effects of U. maritima bulbs extract against α-amylase and acetylcholinesterase activities were explored. Results indicated that U. maritima bulbs extract exhibited a high antioxidant potential in the various invitro systems. Moreover, the investigation of the protective effect of U. maritima bulb extract against induced lipid peroxidation in a biological matrix showed its effective protection. In addition, U. maritima bulb extract revealed an important inhibitory power against α-amylase (IC 50 = 95.03 ± 1.29 µg/mL) and acetylcholinesterase (IC 50 = 72.19 ± 1.48 µg/mL) activities.

Journal of Asia-Pacific Entomology, 2017

Screening for insecticidal potential and acetylcholinesterase activity inhibition of Urginea mari... more Screening for insecticidal potential and acetylcholinesterase activity inhibition of Urginea maritima bulbs extract for the control of Sitophilus oryzae (L.

Interest in botanical insecticides derived from plants has increased as a result of environmental... more Interest in botanical insecticides derived from plants has increased as a result of environmental concerns and insect resistance to chemical insecticides. In this study, we explored the insecticidal activity of Urginea maritima bulbs extract and its inhibitory effect on acetylcholinesterase enzyme system in the rice weevil Sitophilus oryzae (L.) (Coleoptera: Curculionidae). Phytochemical screening and HPLC-ESI/TOF-MS analysis revealed the presence of bioactive molecules with high insecticidal potential. Content of polyphenols (130.88 ± 0.44 mg GAE/g FW), flavonoids (50.81 ± 0.25 mg RE/g FW) as well as alkaloids (12.09 ± 0.16 mg AE/g FW) were high. HPLC-ESI/TOF-MS analysis results demonstrated that ferulic acid (124.19 μg/g FW), vanillic acid (75.84 μg/g FW) and 4-hydroxybenzoic acid (59.73 μg/g FW) were the major phenolic compounds of U. maritima bulbs extract. The toxic potential against the rice weevil using contact and repellent bioassays showed the highest insecticidal potential of U. maritima bulbs extract. The LD 50 , LC 50 and RC 50 values were 19.03 μg/insect, 2.35 μg/cm 2 and 0.009 μg/cm 2 for contact bioassay by topical application, contact bioassay by treated filter paper method and repellent bioassay, respectively. Furthermore, U. maritima bulbs extract inhibited acetylcholinesterase (AChE) activity and median inhibition concentration IC 50 was evaluated to 66.08 μg/ml. The findings of the present investigation confirmed that Urginea maritima may be recommended as an eco-friendly alternative to synthetic insecticides.

Environmental Science and Pollution Research volume, 2019

The main objective of the present study is to introduce a new and ecologically safe method for ma... more The main objective of the present study is to introduce a new and ecologically safe method for managing the rice weevil,
Sitophilus oryzae. Therefore, the Agave americana leaf extract’s phytochemical profile, and its insecticidal activity against the
adults of S. oryzae were evaluated. The A. americana leaf extract was screened for the following phytochemicals: total phenolics
(14.70 ± 0.31 mg GAE/g FW), total flavonoids (5.15 ± 0.18 mg RE/g FW) and saponins (10.32 ± 0.20 mg OAE/g FW). The
HPLC-ESI/TOF-MS analysis results revealed that flavonoid glycosides (kaempferol, quercetin, and isorhamnetin derivates) were
the major phenolic compounds of the A. americana leaf extract. In addition, the GC-MS analysis identified n-alkanes (77.77%) as
significant compounds of the lipophilic fraction from the leaf extract. Moreover, the insecticidal potential was assessed through
contact and repellent bioassays towards the rice weevil adults. The LD50, LC50, and RC50 values were 10.55 μg/insect, 8.99 μg/
cm2, and 0.055 μg/cm2 for topical application method, treated filter-paper method, and repellent bioassay, respectively.
Furthermore, the A. americana leaf extract inhibited digestive enzyme activities, and median inhibition concentrations IC50 were
evaluated to be 146.06 ± 1.74 and 86.18 ± 1.08 μg/mL for α-amylase and protease, respectively. Overall, our results highlighted
the promising potential of the leaf extract against S. oryzae adults, allowing us to recommend the extract under investigation as an
ecofriendly alternative to synthetic insecticides.