Judul: Rancang Bangun Angkong Bermesin sebagai Sarana Pengangkutan pada Proses Pengumpulan Buah Kelapa Sawit
Abstrak: Harvesting activity are one of the important activities in the palm oil production process. Harvesting activity consist of cutting fresh fruit bunches (FFB) from their stems, collection, and transport. Transportation activities in the process of collecting FFB still using simple tools, it’s wheelbarrow driven by humans. Collection FFB activity is one tough job and requires large manpower. The main topic of this research is to decrase human power load when pushing wheelbarrow with the addition of engine as a power source. Design criteria for wheelbarrow engined is to has a maximum forward speed equivalent to ability of human beings, which is 5 KPH. Design using CAD software. Adding engine is expected to increase the wheelbarrow transport capacity. The results of wheelbarrow with engine design is using 2-stroke engine with a capacity of 0.78 iii KW used from mowers engine. Functional part of the main functions are supporting frame, tub, engine cradle, 2 stroke engine, gearbox, eccentric gear, chain and sprocket, wheel, fuel tank, throttlecontrol, and handle grip. From the analysis and calculation is determined using the frame, wheels and tubs of wheelbarrow Artco branded, 2-stroke engine with a capacity of 0.78 KW, using a gearbox reduction ratio 1:20 type 40, roller chain size 40, sprocket 14T and 45T. The results from this research are design wheelbarrow with engine that have forward speed 5 KPH.
Keyword: wheelbarrows with engine design, wheelbarrow, transportation of oil palm fruits, oil palm fruits collection process

Judul: Design of Oil Palm Fresh Fruit Bunches Catchment Mechanism and Its Potential Energy Utilization
Abstrak: Pemanenan dan transportasi tandan buah segar kelapa sawit (TBS) merupakan kegiatan yang paling intensif dilakukan di perkebunan kelapa sawit. Secara umum, proses pemanenan dan evakuasi TBS dari dalam kebun menuju tempat pengumpulan hasil (TPH) masih dilakukan secara manual, dan menyisakan beberapa masalah. Beberapa masalah tersebut adalah terjadinya kerusakan fisik pada TBS yang cukup tinggi, dan masalah berondolan buah sawit yang tercecer saat pemanenan TBS. Kerusakan fisik yang terjadi pada TBS akan sangat mempengaruhi kualitas buah dan kualitas ekstraksi minyak sawit yang akan diproduksi. Sementara itu, waktu untuk mengumpulkan berondolan buah sawit yang tercecer adalah tidak sedikit sehingga akan menghambat kinerja dan kapasitas pemanenan. Dalam pemanenan kelapa sawit, tandan buah yang jatuh memiliki energi potensial yang cukup besar, yang dapat ditangkap dan digunakan sebagai daya penggerak angkong dalam mengevakuasi TBS. Sampai dengan saat ini belum ditemukan sebuah peralatan untuk menangkap TBS dan pada saat yang sama dapat menangkap dan memanfaatkan energi potensial dari tandan jatuh saat panen. Oleh sebab itu, tujuan dari penelitian ini adalah merancang mekanisme penangkap TBS, merancang mekanisme penyimpanan energi potensial jatuhnya TBS, merancang konsep pemanfaatan energi potensial jatuhnya TBS untuk menggerakkan roda gerobak dorong (angkong), serta mendapatkan data kinerja mesin yang telah dirancang., Harvesting and transportation of oil palm fresh fruit bunches (FFB) is the most intensive activity performed in oil palm plantations. Generally, harvesting and evacuation of FFB are still done manually, and leaves many problems. The problems have not been resolved to date, in harvesting FFB manually are the occurrence of physical damage on FFB is quite high, and considerable number of fruitlets that are detached (separated from the bunch). Physical damage that occurred on FFB will greatly affect the quality of the fruit and the quality of the extraction of palm oil to be produced. Collecting back scattered loose fruits also very tiring and takes a long time, thus inhibiting the activity of harvesting and reduce the capacity of harvesting. In oil palm harvesting, falling fruit bunches have a considerable potential energy, which can be captured and used to power the wheelbarrow in evacuating the fruit bunches. However, to date, there is no equipment to capture the FFB and at the same time capture and utilize the potential energy of the falling bunches during harvest. Therefore, the objectives of this study were to design a FFB catchment mechanism, to design the utilization of potential energy of falling FFB mechanisms, to design the concept of utilization of potential energy of falling FFB to drive the wheelbarrow, and to obtain performance data of machine that has been designed.
Keyword: catchment mechanism, harvesting, oil palm, potential energy, wheelbarrow

Judul: Durability of Specific Immunoglobulin (Ig) Y Againts Influenza and Covid-19 in Sunscreen
Abstrak: The benefit of specific immunoglobulin Y (Ig Y) as an active ingredient in personal care products such as sunscreen has not been properly studied. Our study aims to evaluate the reliability of specific IgY against influenza and the COVID-19 virus in a sample sunscreen product. Specific IgY influenza and COVID-19 viruses were inserted in the sample sunscreen at two concentrations of 0.1% and 0.25%. Three treatments were observed: control (C) sunscreen without IgY, treatment 1 (T1) sunscreen with 0.1% IgY, and treatment 2 (T2) sunscreen with 0.25% IgY. Organoleptic observations were carried out to monitor changes in aroma, color, and texture, and sunscreen sampling was done every week for 6 weeks. The durability of IgY was evaluated using an enzyme-linked immunosorbent assay (ELISA) and a neutralization assay. Organoleptic observation from weeks 1 to 6 showed consistency in its aroma, color, and texture. Enzyme-linked immunosorbent assay and neutralization assay (NA) results of the T1 and T2 groups showed negative results except for sample T1 at week 5, which showed a positive result in the Influenza A ELISA. Based on the results, it seems that IgY concentrations of 0.1% or 0.25% were not optimal. However, this negative result might be due to low concentration of the IgY and the presence of beeswax, which inhibits IgY and causes it to dissolve in distilled water, thus preventing it from being detected in the assay.
Keyword: Immunoglobulin Y, Sunscreen, Influenza, COVID-19, Biological Activity