Judul: Penerapan Teori Perilaku Terencana untuk Menganalisis Niat Menyisakan Makanan pada Mahasiswa IPB
Abstrak: Salah satu permasalahan yang berkaitan dengan makanan adalah ketika tidak semua individu menghabiskan makanan yang telah disajikan sehingga makanan yang layak konsumsi menjadi terbuang (sisa makanan). Teori perilaku terencana (TPB) dapat digunakan untuk mengetahui faktor-faktor niat menyisakan makanan. Penelitian ini bertujuan untuk menganalisis faktor-faktor pembentukan perilaku menyisakan makanan pada mahasiswa IPB. Penelitian dengan desain cross sectional dilakukan melalui pengisian kuesioner oleh 96 mahasiswa gizi dan non gizi. Pengetahuan tentang sisa makanan pada seluruh mahasiswa tergolong cukup (60-80%). Sikap, norma subjektif, persepsi kontrol perilaku, dan niat menyisakan makanan berada pada kategori tinggi pada kedua kelompok. Pada mahasiswa non-gizi, variabel yang berhubungan signifikan dengan variabel TPB adalah usia, pendidikan ayah, status kerja ayah, dan pengeluaran konsumsi (p<0.05). Selain itu, terdapat hubungan antara niat menyisakan makanan dengan sikap, norma subjektif, dan persepsi kontrol perilaku (p<0.05).
Keyword: mahasiswa gizi, mahasiswa non-gizi, sisa makanan, teori perilaku terencana

Judul: Analisis Intensi Pembelian Produk Pangan IPB: Pendekatan Theory of Planned Behavior
Abstrak: Pengaruh sikap, norma subjektif, dan kontrol perilaku mahasiswa terhadap intensi pembelian produk IPB dianalisis dalam penelitian ini. Penelitian ini menggunakan disain cross sectional study, melibatkan 400 mahasiswa sarjana dari seluruh fakultas di IPB menggunakan metode cluster random sampling. Intensi pembelian diukur dengan menggunakan instrumen Theory of Planned Behavior (TPB) yang dimodifikasi dari penelitian sebelumnya. Hasil menunjukkan bahwa proporsi terbesar mahasiswa memiliki sikap (75,0%) dan intensi pembelian (72,0%) yang tergolong pada kategori sedang, namun proporsi terbesar mahasiswa pada norma subjektif (53,2%) dan kontrol perilaku (60,5%) masih tergolong rendah. Uji beda independent sample t-test menunjukkan bahwa terdapat perbedaan yang signifikan antara intensi pembelian mahasiswa laki-laki dan perempuan (p=0,024), sedangkan uji beda ANOVA menunjukkan bahwa terdapat perbedaan yang signifikan antara kontrol perilaku mahasiswa semester empat dan delapan (p=0,050). Hasil regresi menunjukkan bahwa intensi pembelian mahasiswa terhadap produk IPB dipengaruhi oleh uang saku total mahasiswa, sikap, norma subjektif, dan kontrol perilaku.
Keyword: Attitude, Behavioral control, Subjective norm, Undergraduate students

Judul: Systematics of Desmos (Annonaceae) in Malesia
Abstrak: Desmos is a woody climbing genus of Annonaceae which has been widely used as traditional medicine in several countries such as China, Indo-China, Thailand, and Peninsular Malaysia to treat dysentery, vertigo, fever, and postpartum. Phylogenetic studies on Desmos showed a close relationship between Desmos and Dasymaschalon. They share similar moniliform monocarpic fruits, but their flowers are different. It has been debated among Annonaceae researchers whether both genera should be treated as the same or distinct genus. Therefore, investigation on the taxonomic delimitation of Desmos species and Dasymaschalon will be necessary. Plastid genome (plastome) identification, leaf epidermal section of Desmos species and Dasymaschalon species, a taxonomic revision of Desmos in Malesia using morphological data, the spatial distribution of Desmos species in Malesia, and morphological and genetic variation in Desmos chinensis population using ISSR marker were used to investigate taxonomic delimitation of Desmos. Plastome study of Desmos chinensis and Dasymaschalon dasymaschalum was carried out to determine the origin, evolution, phylogenomics, and identify marker candidates for Desmos and Dasymaschalon or with other genera in Annonaceae. We discovered that the plastome of Desmos chinensis was circular with the size of 167,677 bp (smaller than Dasymaschalon dasymaschalum), consist of 111 genes, including 78 protein-coding genes, 29 transfer RNAs, and 4 ribosomal RNAs. The plastome showed a typical quadripartite structure, i.e., large single copy (LSC), small single copy (SSC), and two inverted repeats (IRs). The plastome of Dasymaschalon dasymaschalum was 191,488 bp in length, which also exhibited a typical quadripartite structure (LSC, SSC, and two IRs). Desmos chinensis and Dasymaschalon dasymaschalum showed different copies of accD, ndhD, ndhF, rps18, and ycf2. Protein coding genes of rpoB, rpoC1, rbcL, matK, rpl32, infA, and rpl36 were identified based on nucleotide diversity, sequence variability, and parsimony-informative sites. The genes are defined as molecular marker candidates of plastome for phylogenetic, barcoding, and population genetic research. We predicted that Desmos chinensis and Dasymaschalon dasymaschalum separated at ca. 64 million years ago during the Paleocene. Leaf anatomical feature study was carried to support the taxonomic delimitation of interspecific Desmos and intergeneric of Desmos and Dasymaschalon. Leaf anatomy in the paradermal section of 20 taxa (12 species of Desmos, eight species of Dasymaschalon) have been carried out. According to the leaf epidermal section, Desmos and Dasymaschalon are two distinct genera mainly distinguished based on the anticlinal wall undulation of epidermal cells and supported by variation of the crystal type and size. The anticlinal wall undulation of Desmos was almost straight to slightly wavy and never sinuous; meanwhile, Dasymaschalon varies from almost straight to deeply sinusoid. The crystals of Desmos consist of rhombohedral, druse type A, and druse type B crystals, whereas Dasymaschalon has prism, druse type A, druse type B, and druse type C crystals. The recent taxonomic revision using the morphological data was mainly based on the examination of about 1374 specimens from BO, L, WAN, ANDA, SING, SAN, K, P, HUH herbaria. The Desmos species in Malesia consists of eight species: D. acutus, D. chinensis, D. chryseus, D. dunalii, D. pedunculosus, D. subbiglandulosus, two new records: D. lawii and D. macrocarpus, and one
Keyword: Dasymaschalon, Desmoid clade, Magnoliid, plastid genome, phylogenomics analysis